Abstract
A two-sectioned InAs/InP quantum dash laser structure is proposed and investigated as a monolithic broadband multimodal tunable laser with an integrated semiconductor optical amplifier. The optical power-injection current and spectral characteristics of the device at different operating conditions demonstrated a total wavelength tunability of 1/415.8 nm in the extended-L-band (1/41615 to 1/41630.8 nm) window with 1/42.0 times -3 dB bandwidth enhancement. Furthermore, due to the unique tunability mechanism of forward biasing the amplifier section, the device exhibits simultaneous wavelength tuning as well as optical amplification features, with an estimated gain of 1/48.5 dB affirmed by an increase in the wall-plug efficiency up to 6.8% from 3.9%, shown by its single-section counterpart. This demonstration paves a potential platform for the deployment of broadband quantum-dash laser-amplifiers as unified light sources in next-generation optical access networks.
| Original language | English |
|---|---|
| Article number | 096102 |
| Journal | Optical Engineering |
| Volume | 59 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 Sep 2020 |
Bibliographical note
Publisher Copyright:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
Keywords
- optical amplifier
- quantum dash
- tunable laser
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Engineering