Measurement of small-signal and large-signal responses of packaged laser modules at high temperature

Autor:	Hai Peng Song, Ning Hua Zhu, Liang Xie, Shang Jian Zhang, Ji Min Wen
Rok vydání:	2007
Předmět:	Distributed feedback laser Frequency response Materials science business.industry Biasing Laser Chip Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Semiconductor laser theory Optics law Modulation Electrical and Electronic Engineering business
Zdroj:	Optical and Quantum Electronics. 38:1245-1257
ISSN:	1572-817X 0306-8919
DOI:	10.1007/s11082-006-9039-3
Popis:	In this paper, the pulsed injection method is extended to measure the chip temperature of various packaged laser modules, such as the DFB laser modules, the FP laser modules, and the EML laser modules. An optimal injection condition is obtained by investigating the dependence of the lasing wavelength on the width and period of the injection pulse in a relatively wide temperature range. The small-signal frequency responses and large-signal performances of packaged laser modules at different chip temperature are measured. The adiabatic small-signal modulation characteristics of packaged LD are first extracted. In the large-signal measurement, the effects of chip temperature, bias current and driving signal on the performances of the laser modules are discussed. It has been found that the large-signal performances of the EML modules depend on the different red-shift speeds of the DFB and EAM sections as chip temperature varying, and the optimal characteristics may be achieved at higher temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8605b4c802b61642d08342abd2695a37 https://doi.org/10.1007/s11082-006-9039-3 Zobrazit plný text záznamu Full text from SpringerLink