Tunable Two Stage Diode Laser Isolators, DLI Series
DLI Faraday Isolators are two-stage, tunable isolators specifically engineered to meet the unique demands of diode lasers in the visible spectrum. They combine the superior isolation performance of a two-stage design with the flexibility of tunable operation. Easy to integrate into existing systems, these isolators can be adjusted precisely without altering laser polarization or position. Injection-locking versions are also available, making DLI Faraday Isolators a versatile, high-performance solution for demanding optical setups.
The DLI two-stage isolators provide exceptionally high isolation (≥60 dB) without affecting polarization or beam alignment and offer tunable maximum isolation and transmission across the full wavelength range. Precise wavelength adjustment is enabled by rotating the central polarizer with a micrometer set screw. Blocked radiation is safely redirected out of the beam path for easy access. Injection locking versions are available and allow efficient seed laser in-coupling.
| Product | DLI 1 | DLI 3 |
| Aperture Diameter | 5.0 mm | 5.0 mm |
| Isolation value (dB) | ≥ 60 | ≥ 60 |
| Transmission at design wavelength | ≥ 80.0 % | ≥ 80.0 % |
| Wavelength Range | 745.0 - 890.0 nm | 650.0 - 760.0 nm |
| Dimensions base plate (LxWxH) | 50x60x10 mm | 50x60x10 mm |
| Damage Threshold @ 1.2 ps pulses (J/cm²) | 0.2 @ 890.0 nm | 0.2 @ 760.0 nm |
| Damage Threshold @ 8.0 ns pulses (J/cm²) | 0.9 @ 890.0 nm | 0.8 @ 760.0 nm |
| Part Number | 84501003000 | 84501001000 |
- Two coupled isolator stages in series: Provide exceptionally high isolation (≥60 dB) without altering polarization or beam position.
- Tunable: Delivers maximum isolation and transmittance across the full wavelength range.
- High-precision: Precise wavelength adjustment is achieved by rotating the central polarizer using a micrometer set screw. Each isolator is accompanied by an individually calibrated adjustment curve.
- Access to blocked beam: Blocked radiation is deflected 90° from the beam axis and is not absorbed within the isolator. Instead, it exits through the polarizers' side surfaces and exit window, making it accessible.
- Injection locking versions available: This version inverts the operating mode, using the exit window for seed laser in-coupling. It efficiently decouples the master and slave lasers, simplifying stable mode locking (e.g., for Ti:Sapphire lasers).
DLI
| Product | DLI 1 | DLI 3 |
| Aperture Diameter | 5.0 mm | 5.0 mm |
| Isolation value (dB) | ≥ 60 | ≥ 60 |
| Transmission at design wavelength | ≥ 80.0 % | ≥ 80.0 % |
| Wavelength Range | 745.0 - 890.0 nm | 650.0 - 760.0 nm |
| Dimensions base plate (LxWxH) | 50x60x10 mm | 50x60x10 mm |
| Damage Threshold @ 1.2 ps pulses (J/cm²) | 0.2 @ 890.0 nm | 0.2 @ 760.0 nm |
| Damage Threshold @ 8.0 ns pulses (J/cm²) | 0.9 @ 890.0 nm | 0.8 @ 760.0 nm |
| Part Number | 84501003000 | 84501001000 |
- Two coupled isolator stages in series: Provide exceptionally high isolation (≥60 dB) without altering polarization or beam position.
- Tunable: Delivers maximum isolation and transmittance across the full wavelength range.
- High-precision: Precise wavelength adjustment is achieved by rotating the central polarizer using a micrometer set screw. Each isolator is accompanied by an individually calibrated adjustment curve.
- Access to blocked beam: Blocked radiation is deflected 90° from the beam axis and is not absorbed within the isolator. Instead, it exits through the polarizers' side surfaces and exit window, making it accessible.
- Injection locking versions available: This version inverts the operating mode, using the exit window for seed laser in-coupling. It efficiently decouples the master and slave lasers, simplifying stable mode locking (e.g., for Ti:Sapphire lasers).
DLI