High-Performance 1.55- $\mu\hbox{m}$ Superluminescent Diode Based on Broad Gain InAs/InGaAlAs/InP Quantum Dash Active Region

Autor: M. Z. M. Khan, T. K. Ng, B. S. Ooi
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: IEEE Photonics Journal, Vol 6, Iss 4, Pp 1-8 (2014)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2014.2337892
Popis: We report on the high-performance characteristics from superluminescent diodes (SLDs) based on four-stack InAs/InGaAlAs chirped-barrier thickness quantum dash (Qdash) in a well structure. The active region exhibits a measured broad gain spectrum of 140 nm, with a peak modal gain of ~41 cm-1. The noncoated two-section gainabsorber broad-area and ridge-waveguide device configuration exhibits an output power of > 20 mW and > 12 mW, respectively. The corresponding -3-dB bandwidths span ~82 nm and ~72 nm, with a small spectral ripple of
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