Iodine-stabilized diode laser at 633 nm: effects of optical feedback
| Autor: | Erkki Ikonen, Jianpei Hu, H. Talvitie, Mikko Merimaa |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Distributed feedback laser
Tunable diode laser absorption spectroscopy Materials science business.industry Far-infrared laser Optical modulation amplitude Laser law.invention Optics Laser diode rate equations law Diode-pumped solid-state laser Laser power scaling Electrical and Electronic Engineering business Instrumentation |
| Zdroj: | IEEE Transactions on Instrumentation and Measurement. 48:587-591 |
| ISSN: | 0018-9456 |
| DOI: | 10.1109/19.769664 |
| Popis: | The frequency of a diode laser has been stabilized to the hyperfine spectrum of molecular iodine at 633 mm. A frequency stability and a (day-to-day) reproducibility of 4/spl times/10/sup -12/ and 5/spl times/10/sup -11/, respectively, were obtained. In particular, we have investigated the effect of optical feedback on the locking point frequency of the stabilized diode laser. Optical feedback can cause amplitude variations and harmonic distortion of the frequency modulation of the diode laser and, subsequently, cause a significant shift of the locking point of the laser. The optical feedback is shown to have undesired effects even at very small (7/spl times/10/sup -10/) levels. |
| Databáze: | OpenAIRE |
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