Achieving High Stability of Dual-Wavelength U-Shaped Laser in the C-Band Using Optical Feedback

TY - JOUR

T1 - Achieving High Stability of Dual-Wavelength U-Shaped Laser in the C-Band Using Optical Feedback

AU - Far Brusatori, Mónica

AU - Klein, Holger

AU - Volet, Nicolas

PY - 2023/5/15

Y1 - 2023/5/15

N2 - Dual-wavelength lasers are attractive for various fields such as terahertz generation and high-precision spectroscopy, particularly when exhibiting narrow-linewidth performance. This study focuses on linewidth measurements of a monolithically-integrated InP dual-wavelength laser emitting in the telecom C-band. Linewidths below 3 MHz are demonstrated for both lines, which reduce to values below 40 kHz after introducing optical feedback from both sides of the laser cavity. The device has a small form-factor and is made with mature technologies, and as such has direct applications in the aforementioned fields.

AB - Dual-wavelength lasers are attractive for various fields such as terahertz generation and high-precision spectroscopy, particularly when exhibiting narrow-linewidth performance. This study focuses on linewidth measurements of a monolithically-integrated InP dual-wavelength laser emitting in the telecom C-band. Linewidths below 3 MHz are demonstrated for both lines, which reduce to values below 40 kHz after introducing optical feedback from both sides of the laser cavity. The device has a small form-factor and is made with mature technologies, and as such has direct applications in the aforementioned fields.

KW - Dual-line laser

KW - dual-wavelength laser

KW - linewidth reduction

KW - narrow linewidth lasers

KW - optical feedback

KW - semiconductor lasers

KW - two-color laser

UR - http://www.scopus.com/inward/record.url?scp=85153360065&partnerID=8YFLogxK

U2 - 10.1109/lpt.2023.3264160

DO - 10.1109/lpt.2023.3264160

M3 - Letter

SN - 1041-1135

VL - 35

SP - 573

EP - 576

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 10

ER -