トプティカ社では究極の狭線幅を特徴とする安定化されたチューナブル半導体レーザーを提供しています。しかしながら多くの最先端のアプリケーションでは更に高度で厳しい要求事項があります。周波数変動の低減や長時間周波数ドリフトを無効にするために周波数安定化やロッキングの技術が必要とされ、トプティカ社では様々なレーザーロッキングエレクトロニクスをご用意しています。
Application Note - Phase and Frequency Locking of Diode Lasers
| FALC pro | DigiLock 110 | FALC 110 & mFALC 110 | PDH/DLC pro | DLC pro Locka | Wavelength Meter | |
|---|---|---|---|---|---|---|
| Description / Type | Digitally controlled fast analog PID | Versatile digital locking solution incl. PID | Fast analog 2-Channel PID | Pound-Drever-Hall Signal Generation, requires additional PID | All-digital feedback solution, incl. PID | Wavelength meter with PID option |
| Main application | all | linewidth narrowing | PDH locking, FM or modulation transfer spectroscopy | Spectroscopy lock | Long-term stabilization | |
| Side-of-fringe | ✔ | ✔ | ✔ | ✔ | not applicable | |
| Top-of-fringe | With PDH | ✔ | With PDH or PDD | ✔ | ✔ | not applicable |
| Max. bandwidth | 50 MHz (-3 dB) | ≈ 10 MHz | ≈ 45 MHz | 50 MHz (analog) 1.5 MHz (digital) | ≈ 30 kHz | < 100 Hz |
| Modulation frequency | 17 Hz .. 25 MHz | 5 MHz or 25 MHz | 11 Hz .. 160 kHz | not applicable | ||
| Accuracy | depends on reference (can be very good) | 2 MHz | ||||
| Signal analysis | FFT, ... | FFT, ... | ||||
| Relock mechanisms | With DLC pro Lock | ✔ | ✔ | |||
| Computer control | ✔ | ✔ | ✔ | ✔ | ✔ | |
| High voltage output | ✔ | |||||
| High bandwidth output | ✔ | ✔ | ✔ | ✔ | ||
| Two feedback channels | ✔ | ✔ | ✔ | ✔ | ✔ | Up to 8 channels available |
| Rack compatibility b | DLC pro required | ✔ | ✔ | c | ||
| Strength | Best performance | High end | Integrated in DLC pro | Stand-alone | ||
a optional software license for DLC pro
b DLC ext or SYS DC 110
c Built-in module for DLC pro