The D2-210 Saturated Absorption Spectroscopy Module is an integral piece of our complete line of photonics tools supporting the AMO Community.
Features:
- Configurable for Potassium, Rubidium, or Cesium
- Side or Peak Locking
- Temperature stabilized
- Intensity normalized
- Magnetic shielding
- Terminal or pass-through configuration
- Improved mechanics
- Optional Doppler subtraction and fiber coupling
- 5 MHz loop bandwidth
Saturated Absorption High-Precision Frequency Reference
Vescent Photonics’ D2-210 second-generation Spectroscopy Module makes locking to atomic transitions easier and more powerful than ever before. Completely redesigned to maximize performance in a number of laser-locking environments, the D2-210 makes atomic absorption-referenced frequency locks simple. Designed to work as a general-purpose frequency discriminator, it is compatible with our D2-125 Reconfigurable Servo as well as other feedback loop filters.The D2-210 can be charged with either Potassium, Rubidium, or Cesium. It is magnetically shielded to reduce perturbations due to magnetic fields, and accommodates free-space or, optionally, a fiber-coupled input. The D2-210 allows flexible operation, accepting laser powers from microwatts to over a hundred milliwatts, and it also offers improved, easier-to-align optomechanics and a beam path that effectively eliminates back reflections to the laser. The D2-210 provides a signal to lock to either the side of an absorption or the peak and can optionally support Doppler-broadened background subtraction.
| Specifications | ||
|---|---|---|
| Value | Units | |
| General | ||
| Fill Choices | K, Rb, Cs | |
| Coupling Configuration | Terminal or pass-through | |
| Input power range1 | 2-1,000 | mW |
| Input type | Free-space or Fiber-coupled2 | |
| Supported locks | Side-of-transition, peak | |
| Gas Cell Temperature | ~35 | oC |
| Temperature Stability | ~0.01 | oC |
| Beam Height | 0.95 | inches |
| Package Dimensions | 3.62 × 4.98 × 1.7 | inches |
| Photodiode Amplifier | ||
| Transimpedance (signal) | 20,000 | Ω |
| Bandwidth (signal) | 5 | MHz |
| Noise @ 4 MHz (shot level) | 80 | nV/√ Hz |
| Power Cable | Order VPN00410 Hirose-to-D Sub 9-pin when powered by D2-005 Order VPN00475 Hirose-to-Hirose when powerd by ICE-Box |
|
All specification subject to change without notice.
1For best results. As little as 500 µW will produce usable signals.
2Optional.
