D2-100-DBR Laser Module
- Highly Vibration Insensitive: No Moving Parts or Piezos
- All Lasers Burned in
- 40 GHz Mode-Hop-Free Tuning via High Bandwidth Injection Current
- Includes 35 dB Optical Isolator & Anamorphic Prisms
The D2-100-DBR laser module provides a highly agile, mechanically robust laser in a 4×4 inch footprint. Included are a distributed Bragg reflector (DBR) laser diode packaged in a precision temperature-controlled module with beam conditioning optics (anamorphic prism pair) and a 35 dB optical isolator. DBR laser diodes are fabricated with the feedback grating patterned directly adjacent to the gain section of the diode. They are highly insensitive to vibrations and, by virtue of a short (~ 1 mm) cavity, can be current tuned over more than 40 GHz mode-hop-free. As a result, the laser is capable of fast servo control for easy locking to atomic and molecular transitions. Moreover, the module contains no moving parts or piezo-electrics and is therefore inherently robust and rugged. The laser diode output is collimated with a 0.55 NA lens mounted to a movable plate for pointing adjustments.
DBR lasers have 2-3 times larger temperature and current tuning coefficients than external-cavity diode lasers (ECDLs). We precisely control this agility by employing two stages of temperature control and driving the injection current with a precision, low-noise current controller with fast servo input. As a result, D2-100 lasers respond faster to environmental challenges than conventional ECDLs.
| Minimum | Typical | Maximum | Units | |
|---|---|---|---|---|
| Available Center Wavelengths | 780, 795, 852, 895, 920, 976, 1064, 1083 | nm | ||
| Center Wavelength Accuracy | on transition for Rb & Cs, ask for other λs | |||
| Tuning | ||||
| Temperature | 1.5 | nm | ||
| Injection Current (Mode Hop Free) | 35 | 40 | 50 | GHz |
| Linewidth | 0.5 | 1.5 | 2.0 | MHz |
| Output Power | Increases for larger λs, from 40 mW to 300 mW | mW | ||
| Polarization | Horizontal | |||