Lasers Optics

Bandpass Filters

Bandpass Filters

 

Common Specifications :

 

Size Tolerance
   +0.0 mm - 0.5 mm
Thickness
   2.0 mm - 7.6 mm
Minimum Active Area
   For - A ........ 7.6 mm白
   For - F ........ 20.2 mm白
   For - R ........ 45.5 mm白
   For - S ........ 45.5 mm SQ
Surface Quality
   80/50; F/F per MIL-F-48616
Coating Quality
   80/50; F/F per MIL-F-48616

Rejection (Spectral)
   Typically 0.01% or 10-4,
   see appropriate data for
   exact specifications.
Environmental and
Spectral Specifications
   Refer to appropriate
   data curve.
Note
   (1) All specifications
      apply to active area.
   (2) Specifications are
      measured and apply at
      room temperature (+22﹎)

 

 

 

 

 

 

 

Custom filters and size available upon request.
For fast delivery, other part numbers from different companies are available. Please call.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

Infrared Bandpass Filters

 

Common Specifications :

 

Angle of Incidence
   Normal
Operating Temperature
   23﹎
Surface Quality
   80/50 ; F/F per MIL-F-48616
Thickness
   0.5 to 3.0 mm
   1.0 mm typical

Substrate Material
   Glass, Quartz,
   Germanium,
   Silicon or Sapphire
Size
   25.4 mm白
Size Tolerance
   +0.0 mm - 0.5 mm
Minimum Active Area
   For-F ............ 20.2 mm白

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

Long Wave Pass And Short Wave Pass Filters
(Visible And Near Infrared)

 

Common Specifications :

 

Size Tolerance
   +0.0 mm - 0.5 mm
Thickness
   2.0 mm - 7.6 mm
Minimum Active Area
   For-A .................. 7.6 mm白
   For-F .................. 20.2 mm白
   For-R .................. 45.5 mm白
   For-S .................. 45.5 mm SQ
Suface Quality
   80/50; F/F per MIL-F-48616 

Coating Quality
   80/50; F/F per MIL-F-48616
Environmental and Spectral
Characteristics
   Refer to accompanying
   data curve.





All specifications apply to active area.

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

Neutral Density Filters Inconel Coated

 

Common Specifications :

 

Metallic-Coated Neutral Density filters attenuate incident light by both the reflection and absorption characteristics of an inconel coating over a broad spectral range

Size Tolerance
   +0.0 mm - 0.5 mm
Thickness
   1.0 mm - 2.0 mm
Minimum Active Area
   For-F ............ 22.4 mm白
   For-S ............ 47.8 mm SQ
Surface Quality
   80/50; F/F per MIL-F-48616
Coating Quality
   80/50; F/F per MIL-F-48616
Coating Hardness and Adhesion
   Per MIL-M-13508C

Humidity Resistance
   Per MIL-C-48497
Maximum Operating Temperature
   +250﹎
Spectral Characteristics
   Refer to accompanying
   data curve.
Substrates
   QD - Fused Silica
   GD - Polished Crown
   Glass

All specifications apply to the
active area.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

Neutral Density Filters Absorptive Glass

 

Common Specifications :

 

Absorptive Glass Neutral Density filters attenuate incident light by absorption through the substrate medium and are used where reflection of incident light is undesirable. They are used primarily in the visible spectrum.

Size Tolerance
   +0.0 mm - 0.5 mm
Thickness
   0.5 mm - 7.0 mm
Minimum Active Area
   For-F .................. 22.4 mm白
   For-S .................. 47.8 mm SQ
Suface Quality
   80/50; F/F per MIL-F-48616

All specifications apply to active area.

Maximum Operating Temperature
   +250﹎
Spectral Characteristics
   Refer to accompanying
   data curve.
Reflectance Per Surface
   Approximately 4%, a
   product of air-glass
   interface.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

Filter Glasses

 

 

 

 

 

 

 

 

 

 

Lasers Optics

Bandpass Filters

CO2 Laser Optics

 

Series LX : ZnSe PL/CX Lenses

Series LX Plano/Convex lenses are the most cost-effective choice for precision focusing in low power CO2 lasers. These low cost lenses are A/R coated with high durability, low absorption thin-film coatings for use at 10.6伊m. Dual band A/R coatings are also available to aid in system alignment. LX Series lenses are ideal for use as beam delivery optics in low power CO2 marking and engraving lasers.

Specifications
PL/CX and Meniscus Lenses

Series LM :
ZnSe Meniscus Lenses

Meniscus lenses allow minimal spherical aberrations when a parallel beam enters the convex surface. This results in a minimum focal spot size for the incoming collimated light source. All plano convex and meniscus lenses shown have positive focal lengths. Negative focal lengths are available on request.

 

 

 

Series OC : Output Couplers

Included in the OC Series are some of the more commonly used internal mirrors. Output couplers, or front mirrors, utilize ZnSe, primarily due to its low absorption at 10.6伊m. Their purpose is to reflect a percentage of the laser beam back into the resonator for continuous amplification while transmitting energy through the delivery system to the workpiece. Partially reflective coatings are used on the inside to reflect energy back into the resonator while the outside surface is AR coated to maximize transmission out.

Series BS : Beamsplitters

These beamsplitters are designed to reflect a given percentage of the incident energy while transmitting the balance. The beamsplitters shown here are intended for use at 45◥ AOI and 10.6伊m. Polarization must be specified due to differences in transmission and reflection values for S and P polarization. Beamsplitters can be provided with parallel surfaces, or they can be wedged to minimize interference caused by reflections of the second surface. BS Series beamsplitters feature a range of reflectance values between 4.5 and 50%. Other reflectance values are available upon request.

 

 

Series BC :Beam Combiners

Series BC beam combiners are ideal for applications where diode lasers are being used for system alignment. Designed for use at 45◥, they transmit the 10.6伊m beam and align it with the 90◥reflected diode beam. Standard beam combiners are optimized for .633伊m but can also be designed for other diode wavelengths such as .650伊m and 670伊m. Average transmission ˇ 99% @ 10.6伊m. Average reflection ˇ 85% @ .633伊m.

Series W : Windows

W Series windows are often used as vacuum seals in front of the output coupler or in other parts of a system that require sealing of vacuum or high pressure. ZnSe is typically used for this application and can be provided coated or uncoated. AR coatings provide ˇ98.5% transmission and reflection ˉ.25% per surface @ 10.6伊m. Absorption values do not exceed .25%. Other diameters, thicknesses, and coatingsare available upon request.

 

 

 

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Series MM : Molybdenum mirrors

Manufactured from pure vacuum ARC cast low carbon molybdenum(Mo), these uncoated mirrors are extremely durable and typically used in physically demanding environments. Molybdenum's intrinsically hard surface makes it an ideal choice for dirty industrial applications where frequent cleaning is necessary. These mirrors exhibit reflectance >98.1% average. @10.6妣 at 45◥AOI. Absorption and scatter losses are <1.9%

Series TR : Silicon Total Reflectors Protected Silver

Thess silicon total  reflectors are optimized for the CO2 (10.6妣) wavelength using a thin-film coating consisting of silver with a protective dielectric overcoat. They display very good spectral performance throughout out the visible, mid-IR, and for IR and can be used at 45◥AOI or normal in idence without significantly affecting the reflectance or contributing to a phase change. Coating reflectivities ˇ 99.0% @ 10.6妣.

Series PRR Silicon & Copper : Phase Retardation Reflectors
These mirrors consist of a high-efficiency 1/4wave phase reflectance thin-film coating applied to a highly polishedmirror substrate. This specialized coating design changes a linearly polarized CO2 laser beam to a circularly polarized one. Spectral performance of the coating is as follows :
Phase Shift between P & S polarization :
  Si : 90◥+/-3◥        Cu :90◥±5◥
Reflectance @ 10.6妣 and 45◥AOI :
  Si : ˇ98.5% Avg.       Cu : ˇ98.5% average.
Absorption & Scatter :
  Si : ˉ1.5%            Cu : ˉ1.5%

Series ZPR : Zero phase Reflectors

These reflectors utilize a highly enhanced zero phase thin-film coating applied to a silicon mirror substrate. This specialized design provides the basis for a loss polarization insensitive CO2 laser mirror designed to maintain the circular polarization of the beam's delivery system.
Spectral performance is as follows :
phase shift:
0.0◥+/-2.0◥between P and S polarizationReflectance:
99.7%Avg.@1.6妣(ˉ50%@0.633妣)at 45◥AOI
Absorption & Scatter:ˉ0.3%

Specifications : Turning Metal Mirrors & Reflectors

Series TM : Enhanced Copper &
Dual Band(DBMR) Turning Mirrors

These silicon turning mirrors are ideal for reflecting the beam of a CO2 laser for incidence angles from 0◥to 45◥TM Series mirrors are designed and manufactured for high reflectivity and optimum durability in rigorous industrial environments while maintaining a good laser mode. Either single or dual band coatings may be specified by replacing the ※EC§ designation with ※DBMR§.
Specifications are as follows:
Coating/Reflection :
  (-EC)Enhanced Copper:
   99.5% Avg @10.6妣 & 45◥AOI
  (-DBMR)Dual Band :
   99.7% Avg @10.6妣 & 45◥AOI
   97.0% Avg @.633妣 & 45◥AOI

Series TRCC : Silicon Total Reflectors Concave
Series TRCC concave total reflectors are well suited for intracavity use. Incorporating our proprietary enhanced copper thin-film coating design, Series TRCC reflectors exhibit ˇ99.6% reflectance while providing excellent plasma resistance.