Glan Thompson Polarizers
Glan Thompson Polarizer is made of two calcite prisms or two a-BBO prisms cemented together. Two types of Glan Thompsons are available. Glan Thompson polarizers tend to have higher extinction ratio than air spaced polarizers. a-BBO polarizers and Calcite polarizers can be used from about 220 to 900nm and 350 to 2300nm respectively.
| Specifications | |||
|---|---|---|---|
| Material | α-BBO，Calcite |
|
|
| Wavelength Range | α-BBO：200-1100nm，Calcite：350-2300nm | ||
| Extinction Ratio | α-BBO：＜5×10-6，Calcite：＜5×10-5 | ||
| Surface Quality | 20-10 | ||
| Parallelism | <1 arc min | ||
| Beam Deviation | <3 arc min | ||
| Wavefornt Distortion | λ/4@632.8nm | ||
| Damage Threshold | ＞200MW/cm2 | ||
| Coating | Single Layer MgF2 | ||
| Mount | Black Anodized Aluminum | ||
Features:
Cemented, suitable for low power application
Wide Acceptance Angle Field
High Polarization Purity
Cemented, suitable for low power application
Wide Acceptance Angle Field
High Polarization Purity
α-BBO Glan Thompson Polarizer
| Part No. | L/CA | Extinction Ratio | Angular Field（°） | C.A.φa(mm) | O.D.φd(mm) | L+/-0.1(mm) |
|---|---|---|---|---|---|---|
| PGM1006 | 1.6 | <5x10-6 | >15 | 6.0 | 15.0 | 18.0 |
| PGM1008 | 1.6 | <5x10-6 | >15 | 8.0 | 25.4 | 21.0 |
| PGM1010 | 1.6 | <5x10-6 | >15 | 10.0 | 25.4 | 24.5 |
| PGM1015 | 1.6 | <5x10-6 | >15 | 15.0 | 30.0 | 32.5 |
| PGM1020 | 1.6 | <5x10-6 | >15 | 20.0 | 38.0 | 40.7 |
Calcite Glan Thompson Polarizer
| Part No. | L/CA | Extinction Ratio | Angular Field（°） | C.A.φa(mm) | O.D.φd(mm) | L+/-0.1(mm) |
|---|---|---|---|---|---|---|
| PGM2106 | 2.5 | <5x10-5 | 14-16 | 6.0 | 15.0 | 23.0 |
| PGM2108 | 2.5 | <5x10-5 | 14-16 | 8.0 | 25.4 | 28.0 |
| PGM2110 | 2.5 | <5x10-5 | 14-16 | 10.0 | 25.4 | 33.0 |
| PGM2115 | 2.5 | <5x10-5 | 14-16 | 15.0 | 30.0 | 45.5 |
| PGM2206 | 3.0 | <5x10-5 | 25-28 | 6.0 | 15.0 | 26.0 |
| PGM2208 | 3.0 | <5x10-5 | 25-28 | 8.0 | 25.4 | 32.0 |
| PGM2210 | 3.0 | <5x10-5 | 25-28 | 10.0 | 25.4 | 38.0 |
| PGM2215 | 3.0 | <5x10-5 | 25-28 | 15.0 | 30.0 | 53.0 |
Note: Other sizes are available upon request.
