Faraday Isolators (MFS/MFD)
MOGLabs Faraday isolators provide the outstanding performance needed for demanding external cavity diode laser applications, including coupling to singlemode fibres and high finesse optical cavities. High isolation is essential to prevent frequency instability caused by feedback into the laser cavity.
Single and two-stage options are available, with isolation typically >38 dB and >64 dB, and transmission typically well over 90%.
Features
- 33-35dB (typ. 38dB) single-stage
- - 55dB (typ. 60dB) double-stage
- - 5mm and 4mm aperture
- - High transmission
- - Wavelength tunable
- - High power (40W)
Specifications MFS Single-stage Isolators
| Wavelength centre | Wavelength range | Size (Ø x L) |
|---|---|---|
| MFS370 | ±10 nm* | 22 x 34 mm |
| MFS405, MFS425, MFS460 | ±10 nm | 22 x 24 mm |
| MFS650, MFS690, MFS730 | ±20 nm | 35.5 x 50 mm |
| MFS780 | ±30 nm | 35.5 x 51 mm |
| MFS835, MFS885 | ±25 nm | 35.5 x 59 mm |
| MFS945 | ±40 nm | 40.5 x 61 mm |
| MFS1150, MFS1250, MFS1350 | ±50 nm | 22 x 34 mm |
| Aperture | Performance guaranteed over 4.7 mm clear aperture** |
|---|---|
| Isolation | >38 dB; typically >43 dB (except MFS370 >35dB) |
| Transmission | >85%; typically >92% |
| Power | 40 W (4 kW/cm² ) |
Note: transmission reduced away from centre of wavelength tuning range.
Specifications MFD Dual-stage Isolators
| Wavelength centre | Wavelength range | Size (Ø x L) |
|---|---|---|
| MFD660, MFD700, MFD740 | ±20 nm | 35.5 x 74 mm |
| MFD780 | 760 – 810 nm | 35.5 x 74 mm |
| MFD820 | 800 – 870 nm | 35.5 x 73 mm |
| MFD880 | 860 – 930 nm | 35.5 x 106 mm |
| MFD950 | 930 – 1000 nm | 35.5 x 108 mm |
| MFD1020 | ±30 nm | 53.5 x 92 mm |
| MFD1070 | 1050 – 1100 nm | 53.5 x 92mm |
| Aperture | Performance guaranteed over 4.7 mm clear aperture |
|---|---|
| Isolation | >60 dB; typically >67 dB |
| Transmission | >80%; typically >90% |
| Power | 40 W (4 kW/cm²) |
Note: transmission reduced away from centre of wavelength tuning range
| Wavelength centre | Wavelength range | Size (Ø x L) | Isolation | Transmission |
|---|---|---|---|---|
| EOT4-500, EOT4-1020, EOT4-1045 | ±20 nm | 38 x 75 mm | 33 dB min./37 dB typ. | 95% min. |
| EOT5-1020, EOT5-1045 | ±20 nm | 38 x 78 mm | 33 dB min./37 dB typ. | 95% min. |
* To be confirmed
** 4mm clear aperture for MFS1150, MFS1250, MFS1350
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