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Rockfort Associate Private Limited
Delhi, India
gstGST : 07AACCR1924K1ZD Verified Add Review

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TO Header

By making use of quality packing material, we are able to ensure that the orders will remain free from damage during transit. Also, our expert packing personnel strictly check the entire lot before final dispatch. We are associated with renowned transportation providers to ensure delivery of consignments is carried out without a glitch and in a timely manner.

 

Typical Specifications for these headers:

  • Flange Material: Kovar, Alloy42, CRS 1010, OHFC
  • Pin Material: Alloy52, Copper-cored Alloy 52, Copper Cored Kovar
  • Surface Finishing: Electrolytic Nickel Plated, Electroless Nickel Plated, Purity Gold Plated
  • Hermeticity Rate: 1 X 10-8 cc/sec He

 

Typical Applications for these headers:

  • Power Transistor
  • Voltage Regulator
  • Monochip Voltage Regulator
  • Bipolar Transistors
  • Linear Regulator
  • Opto-electronics Devices
  • MOSFEST
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Hybrid Integrated Circuit

We guarantee our products are subjected to stringent quality policies to meet industry standards. To pay for an order, we can agree upon a payment method as per you and our convenience. We are okay with online as well as offline payment options and wish to make payment easy.

 

Typical Specifications for these headers:

  • Flange Material: Kovar, CRS
  • Pin Material: Kovar, Alloy52
  • Package Configuration: DIP, DIL, Flatpack and other types
  • Pin configuration: Nail-head, Straight pin
  • Surface Finishing: Purity Gold Plated, Selective Au Plated on pins only.
  • Hermeticity Rate: 1 X 10-8 cc/sec He

Specifications

Product     Group Product DESCRIPTION Drawing#  Product Code#
DIL 46PIN DIL Package 150-00384-00REVA
Flatpack                16pin Flat Package,                             Selective Gold Plated on Pins only 100-02125-00REVA
DIL  14pin DIL Package 080-01027-00REVA
DIP 40PIN DIP Package 080-01919-00REVA
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Temperature Controllers

Keeping the stern check on packaging procedures, we ensure that the products are packed using the finest packaging material, followed by a stringent check of the whole batch by the professionals. Our organization has all the essential logistic resources and links to ensure on schedule delivery of order(s).

Specifications :

  • Purpose ASIC processor
  • PID control
  • Auto tuning
  • RS-232 interface
  • Programmable
  • Stability - ± 0.1
  • Size - 50, 100, 135mm
  • Normal Package Standard
  • Voltage - 85130VAC

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Anti-Reflective Coatings

Magnesium fluoride (MgF2) is commonly used for single-layer antireflection coatings. MgF2 is almost ideal low refractive index material because it has wide transparent range, good adhesion, high durability and high laser induced damage threshold. It is a good choice for the coating of some crystals, such as BBO, KTP and YAG etc.
Multilayer Anti reflective Coatings (Part No.: VAR) - Rockford offers a full range of V-Coatings from 250nm to 3000nm. This type of coatings can attain the lowest reflectivity at the center wavelength, which can be adjusted to your required wavelength and angle.
Multilayer Broadband Anti reflective Coatings (Part No.: WAR) - Different from single layer MgF2 broadband anti reflective coating, the multilayer Broadband antireflective coating can reaches higher transmission for broadband spectrum. Therefore, it is the ideal for a wide range of wavelengths laser and white light application. Please notify that the wavelength range and reflectivity of the coating are obviously changed according to the incident angle.
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HiRel SMD Package

Owing to our wide distribution network and the fastest transit system, buyers can receive their orders on timely basis. We have installed a large storage facility wherein we keep a large stock of the offerings. This facility helps us in keeping the entire lot away from the damaging factors like moisture, sunlight, dust, rain, etc.

 

General Information:

  • Raw Material: OHFC, Tungsten Copper, Molybdenum, Al2O3 Ceramic
  • Manufacturing Standard: Complied with MIL-PRF-19500, MIL-STD-883 and screened/tested per MIL-PRF-38354

 

Performance and Reliability:

  • Hermeticity: ≤1X10-8 ATM(He) cc/Sec
  • Isolation Resistance: ≥109Ω
  • Temperature Cycle: -65-+175â  500 times
  • Thermal Shock: -65ï½150â 15times
  • Moisture Proof Test: Comply with MIL-PRF-19500, 10 times Cycle

Ceramic-Eyelet TO25X Configuration Details

Pad Material Option Frame Option
Kovar   W85Cu15 Kovar Al2O3+Kovar Sealing Ring
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Sensor Header

We have hired proficient quality analysts having rich domain experience who make sure that only defect-free range will be delivered to buyers. The finest array of products we deliver is manufactured using only exceptional quality inputs (raw material). We make certain that the material (inputs) used are of high grade.

 

Typical Specifications for these headers:

  • Body Material: SST 316L, Kovar
  • Pin Material: Alloy 52, Kovar
  • Header Configuration: 13mm, 19mm, TO5 header
  • Pin configuration: Multiple
  • Surface Finishing: Selectively or Fully Purity Gold Plated
  • Hermeticity Rate: 1 X 10-8 cc/sec He

 

Typical Applications for these headers:

  • High Pressure Gages
  • Pressure Sensors
  • Pressure Transmitters
  • Pressure Transducers

Specifications

Product     Group Product DESCRIPTION Drawing#  Product Code#
Stainless Steel 316L Header SST316L,13mm, Chemical Polish on  Body and Au Plated on pins only 060-01369-00REVA
Stainless Steel 316L Header SST316L,19mm, Chemical Polish on Body and Au Plated on pins only 060-01373-00 REVA
TO39 Header TO39 Header, 6pins, with Central oil hole 050-01913-00REVA
TO39 Header TO39 Header, 6pins, with Central tube 050-01803-00REVA
TO8 Header TO8 Header, Kovar, 16PINS 050-01787-00REVA
TO8 Header TO8 Header, Kovar, 12PINS 050-01788-00REVA
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Wide Angle High Reflectivity Mirrors

  • Feature Convenient To Use, Easy To Fit, Fine Finishing, High Performance, High Zooming Range
  • Packaging Type Carton, Plastic Cap, Plastic Packet, Plastoc Box
  • Warranty 5yrs
  • Focus length 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 50mm

 

These Wide Angle High Reflectivity Mirrors can be availed in varying thicknesses. Raw materials form the basis of any product and thus we obtain them after checking against varied quality parameters. Moreover, we procure raw materials only from reliable sources. We are backed by a quality control wing that strictly check the lot at all stages right from the production to the final dispatch.

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Diffusion Bonded Crystals

Fret not! We are here to help you out with the payment procedures. Be it online or offline payment method, we are here to assist you all the way through the payment process. We have a good rapport with the leading names in the industry from whom we source the basic material, required for manufacturing superior grades products.

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Details

Material Doping concentration Aperture(mm) Length of laser crystal(mm)
YVO4+Nd:YVO4+YVO4 0.1-3% 2x2-10x10 42755
YVO4+Nd:YVO4+YVO4 0.1-3% Dia.2-10 42814
YAG+Nd:YAG+YAG 0.5-1.1% 2x2-10x10 42765
YAG+Nd:YAG+YAG 0.5-1.1% Dia.2-10 42824
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Fluorescence Filter

Our Fluorescence Filter has working efficiency of 99.99%. By using quality packing material, we make sure that the products are properly packed and there will be zero damage during transit. Moreover, our packaging experts stringently check the entire lot before making the final dispatch. We are a reliable name in this arena and thus make sure that the services offered by us for payment are easy to use as well as offer hassle-free and instant transactions.

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Lithium Tri Borates

We have faith in transparency in terms of payment whether in advance or full cost. For their convenience, we offer our clients different payment options and make sure these methods are practical. Our quality auditors conduct regular examinations of the product to keep the quality standards high and as per the international norms.

Rock fort's LBO is featured by :

  • Broad transparency range from 160nm to 2600nm
  • High optical homogeneity (dn»10-6/cm) and being free of inclusion;
  • Relatively large effective SHG coefficient (about three times that of KDP);
  • High damage threshold;
  • Wide acceptance angle and small walk-off;
  • Type I and type II non-critical phase matching (NCPM) in a wide wavelength range;
  • Spectral NCPM near 1300nm.


Rock fort offers LBO of :

  • Strict quality control;
  • Large crystal size up to 30x30x30mm3 and maximum length of 60mm;
  • AR-coated, mounts and re-polished;
  • A large quantity of crystals in stock;
  • Fast delivery(10 days for polished only, 15 days for AR-coated).

Chemical And Structural Properties Of LBO

Crystal Structure Orthorhombic, Space group Pna21, Point group mm2
Lattice Parameter a=8.4473, b=7.3788 , c=5.1395 , Z=2
Melting Point About 834
Mohs Hardness 6
Density 2.47 g/cm3
Thermal Conductivity 3.5W/m/K
Thermal Expansion Coefficient ax=10.8x10-5/K, ay= -8.8x10-5/K, az=3.4x10-5/K

Optical And Nonlinear Optical Properties Of LBO

Transparency Range 160-2600nm
SHG Phase Matchable Range 551 ~ 2600nm (Type I) 790-2150nm (Type II)
Therm-optic Coefficient
(oC, λ in μm)
dnx/dT=-9.3X10-6
dny/dT=-13.6X10-6
dnz/dT=(-6.3-2.1λ)X10-6
Absorption Coefficient <0.1%/cm at 1064nm <0.3%/cm at 532nm
Angle Acceptance 6.54mrad-cm (φ, Type I,1064 SHG)
15.27mrad-cm (q, Type II,1064 SHG)
Temperature Acceptance 4.7oC-cm (Type I, 1064 SHG)
7.5oC-cm (Type II,1064 SHG)
Spectral Acceptance 1.0nm-cm (Type I, 1064 SHG)
1.3nm-cm (Type II,1064 SHG)
Walk-off Angle 0.60o (Type I 1064 SHG)
0.12o (Type II 1064 SHG)







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Potassium Titanyl Phosphate

We, along with our veteran packaging professionals, ensure that the packaging products commence keeping the packaging guidelines in consideration. We strictly use quality packaging material to evade loss during transit. We are capable of delivering consistent and qualitative results by carrying out strict quality examinations.

Rockfort's marketed KTP is featured by :

  • Large nonlinear optical coefficient
  • Wide angular bandwidth and small walk-off angle
  • Broad temperature and spectral bandwidth
  • High electro-optic coefficient and low dielectric constant
  • Large figure of merit
  • Nonhydroscopic, chemically and mechanically stable


Rockfort offers KTP of :

  • Strict quality control
  • Large crystal size up to 20x20x40mm3 and maximum length of 60mm;
  • Quick delivery(2 weeks for polished only, 3 weeks for coated)
  • Unbeatable price and quantity discount
  • Technical support
  • AR-coating, mounting and re-polishing service.

Chemical And Structural Properties

Crystal Structure Orthorhombic, space group Pna21,point group mm2
Lattice Parameter a=6.404?, b=10.616?, c=12.814?, Z=8
Melting Point About 1172oC
Mohs Hardness 5
Density 3.01 g/cm3
Thermal Conductivity 13W/m/K
Thermal Expansion Coefficient αx=11x10-6oC, αy=9x10-6oC, αz=0.6x10-6oC

Optical And Nonlinear Optical Properties

Transparency Range 3504500nm
SHG Phase Matchable Range 4971800nm (Type II)
Therm-optic Coefficients
(oC)
dnx/dT=1.1X10-5
dny/dT=1.3X10-5
dnz/dT=1.6X10-5
Absorption Coefficients <0.1%/cm at 1064nm <1%/cm at 532nm
For Type II SHG of a Nd:YAG laser at 1064nm
 
Temperature Acceptance: 24°C-cm
Spectral Acceptance: 0.56nm-cm
Angular Acceptance: 14.2mrad-cm (φ);55.3mrad-cm (θ)
Walk-off Angle: 0.55o
NLO Coefficients deff(II)≈(d24-d15)sin2φsin2θ-(d15sin2φ + d24cos2φ)sinθ
Non-vanished NLO susceptibilities d31=6.5 pm/V d24=7.6 pm/V
d32=5 pm/V d15=6.1 pm/V
d33=13.7 pm/V









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Yttrium Vanadate YVO4

For the attainment of the complete clients' credibility, we issue an invoice to them including all the relevant information regarding products as well as agreed price. By using quality packing material, we make sure that the products are properly packed and there will be zero damage during transit. Moreover, our packaging experts stringently check the entire lot before making the final dispatch.

Details :

  • Large quantity YVO4 wedges and displacers used for fiber optical isolators and circulators, interleavers, in size 1.25x1.25x0.5mm to 3x3x15mm to meet OEM customer’s requirement.
  • Quick delivery
  • Very competitive price
  • Strict quality control;
  • Very competitive price


YVO4 crystal application : YVO4 crystal are widely used in fiber-optic isolators, beam displacers for fiber optical circulators, and interleavers, etc.

Comparison Of Basic Properties Between YVO4 And Other Birefringent Crystals

  YVO4 TiO2 CaCO3 LiNbO3
Thermal Expansion (/) c-axis 11.4x10-6 9.2x10-6 26.3x10-6 16.7x10-6
a-axis 4.4x10-6 7.1x10-6 5.4x10-6 7x10-6
Refractive Index no 1.9447@1550nm 2.454@1530nm 1.6346@1497nm 2.2151@1440nm
ne 2.1486@1550nm 2.710@1530nm 1.4774@1497nm 2.1413@1440nm
Birefringence(ne-no) 0.2039@1550nm 0.256@1530nm -0.1572@1497nm -0.0738@1440nm
Mohs Hardness 5 6.5 3 5
Deliquescence None None Weak None
Transparency range 0.4-5μm 0.4-5μm 0.35-2.3μm 0.4-5μm

Basic Properties Of YVO4 Crystal

Transparency Range High transmittance from 0.4 to 5 μm
Crystal Symmetry Zircon Tetragonal, space group D4h
Crystal Cell a=b=7.12A;c=6.29A
Density 4.22 g/cm3
Mohs Hardness 5, glass-like
Hygroscopic Susceptibility Non-hygroscopic
Thermal Expansion Coefficiet αa=4.43x10-6/K;αc=11.37x10-6/K
Thermal Conductivity Coefficient //C:5.23 W/m/K;⊥C:5.10 W/m/K
Crystal Class Positive uniaxial with no=na=nb,ne=nc
Thermal Optical Coefficient Dna/dT=8.5x10-6/K;dnc/dT=3.0x10-6/K
Refractive Indices, Birefringence (n=ne-no) and Walk-off Angle at 45o(ρ) no=1.9929,ne=2.2154,n=0.2225,ρ=6.04° at 630nm
no=1.9500,ne=2.1554,n=0.2054,ρ=5.72° at 1300nm
no=1.9447,ne=2.1486,n=0.2039,ρ=5.69° at 1550nm
Sellmeier Equation (λ in μm) no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2


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LiNbO3 Crystals

Being a customer-oriented firm, we make available numerous modes of payment and assure them for confidentiality of transaction. Also, our payment modes are authorized. The packaging commences strictly under the guidance of veteran experts and professionals, thus ensuring optimum packaging, keeping the products safe from various damaging factors.

Structural And Physical Properties Of LiNbO3.

Crystal Structure: Trigonal, Space group R3C, Point group 3m
Cell Parameters: a=5.148 , c=13.863
Melting Point: 1253oC
Curie Temperature: 1140oC
Mohs Hardness: 5
Density: 4.64 g/cm3
Elastic Stiffness Coefficients CE11= 2.33(×1011N/m2 )
CE33= 2.77(×1011N/m2 )

Optical And Electro- Optical Properties Of LiNbO3

Transparency Range: 420-5200nm
Optical Homogeneity: ~ 5 x 10-5 /cm
Refractive indices at 1064nm: ne = 2.146, no = 2.220 @ 1300 nm
ne = 2.156, no = 2.232 @ 1064 nm
ne = 2.203, no = 2.286 @ 632.8 nm
NLO Coefficients: d33 = 86 x d36 (KDP)
d31 =11.6 x d36 (KDP)
d22 = 5.6 x d36 (KDP)
Effective NLO Coefficients: deff(I)=d31sinθ-d22cossin3Φ
deff(II)=d22cos2θcos3Φ
Electro-Optic Coefficients r T33 = 32 pm/V, rS33 = 31 pm/V,
rT31 =10 pm/V, rS31=8.6 pm/V,
rT22 = 6.8 pm/V, rS22= 3.4 pm/V,
Half-Wave Voltage, DC
Electrical field z, light z:
Electrical field x or y, light z:
3.03 KV
4.02 KV
Damage Threshold 100 MW/cm2 (10 ns, 1064nm)










Thermal And Electrical Properties Of LiNbO3

Melting Point: 1250oC
Cruie Temperature: 1140oC
Thermal Conductivity: 38W/m/K@25oC
Thermal Expansion Coefficients(at 25oC): // a, 2.0x10-6/K
// c, 2.2x10-6/K
Resistivity: 2x10-6Ω·cm@200oC
Dielectric Constants: εS11/ε0 =43 εT11/ε0 =78
εS11/ε0 =28 εT33/ε0 =32
Piezoelectric Strain Constant: D22=2.04(x10-11C/N)
D33=19.22(x10-11C/N)



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Anti Reflective Coatings

Buy the best quality Anti Reflective Coatings at market leading prices, from us. We are amid the prominent Suppliers in the town. One can stay assured for high quality of the offered lot as we design and develop it using the best in line raw material and modern work methods. In addition to this, we make sure that the material is sourced from the trusted places only.

Details :

  • Magnesium fluoride (MgF2) is commonly used for single-layer antireflection coatings. MgF2 is almost ideal low refractive index material because it has wide transparent range, good adhesion, high durability and high laser induced damage threshold. It is a good choice for the coating of some crystals, such as BBO, KTP and YAG etc.
  • Multilayer Anti reflective Coatings (Part No.: VAR) - Rockford offers a full range of V-Coatings from 250nm to 3000nm. This type of coatings can attain the lowest reflectivity at the center wavelength, which can be adjusted to your required wavelength and angle.
  • Multilayer Broadband Anti reflective Coatings (Part No.: WAR) - Different from single layer MgF2 broadband anti reflective coating, the multilayer Broadband antireflective coating can reaches higher transmission for broadband spectrum. Therefore, it is the ideal for a wide range of wavelengths laser and white light application. Please notify that the wavelength range and reflectivity of the coating are obviously changed according to the incident angle.
  • Dual Wavelength Band Anti reflective Coatings (Part No.: DAR) - This coating allows two center wavelengths radiation pass through the substrate with low reflectivity. It is often used in frequency doubling systems or the other muti-laser output systems, such as LBO AR-1064/532 or AR-1535/629 and so on.The lower reflectivity at certain wavelengths could be ordered specially.
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Anamorphic Lenses

We have well-organized warehouse that is divided into specified areas according to technological operations in order to automate inbound, outbound and in-stock operations. This helps us in making quick deliveries in the shortest time span.For the convenience of the clients, we have adopted both online and offline payment modes of transaction.

Details :

  • Material - SF11 grade A optical glass
  • Dimension Tolerance - ±0.1mm
  • Angular Tolerance - <3 arc min.
  • Clear aperture - >80% of the central area
  • Surface quality - 40/20 scratch and dig
  • Flatness - <λ/8@830nm
  • Coating - single layer MgF2.
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Contact Us

  • Mr. Gopal Chandra Bose (Rockfort Associate Private Limited)
  • D601, Chitranjan Park, Chittaranjan Park, Delhi - 110019, India
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  • Call 08069247354 Ext. 149