Journal article
Measuring the sensitivity to optical feedback of single-frequency high-power laser diodes
Department of Photonics Engineering, Technical University of Denmark1
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik2
Department of Health Technology, Technical University of Denmark3
NanoBio Light-Systems, Department of Health Technology, Technical University of Denmark4
Biophotonic Imaging, NanoBio Light-Systems, Department of Health Technology, Technical University of Denmark5
Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark6
Laser diodes, in general, are sensitive to optical feedback, especially with regard to maintaining single-frequency operation. Until now, however, the feedback sensitivity of high-power devices such as single-frequency distributed Bragg reflector (DBR) tapered laser diodes has not been investigated in quantitative detail.
In this paper, we analyze the impact of very weak optical feedback between -105 dB and -40 dB on a high-power DBR tapered laser diode. The measurement setup is validated using a typical DFB laser diode. The results are in good agreement with the theory at low-feedback levels. (C) 2021 Optical Society of America
| Language: | English |
|---|---|
| Year: | 2021 |
| Pages: | 885-892 |
| ISSN: | 15208540 and 07403224 |
| Types: | Journal article |
| DOI: | 10.1364/JOSAB.417258 |
| ORCIDs: | Christensen, Mathias , Hansen, Anders Kragh , Jensen, Ole Bjarlin and 0000-0001-5044-955X |
