TY - JOUR
T1 - Measuring the sensitivity to optical feedback of single-frequency high-power laser diodes
AU - Christensen, Mathias
AU - Zink, Christof
AU - Jamal, Muhammad Tahir
AU - Hansen, Anders Kragh
AU - Jensen, Ole Bjarlin
AU - Sumpf, Bernd
PY - 2021
Y1 - 2021
N2 - 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
AB - 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
U2 - 10.1364/JOSAB.417258
DO - 10.1364/JOSAB.417258
M3 - Journal article
SN - 0740-3224
VL - 38
SP - 885
EP - 892
JO - Journal of the Optical Society of America B-optical Physics
JF - Journal of the Optical Society of America B-optical Physics
IS - 3
ER -