High speed modulation of semiconductor lasers pdf

For example, analog microwave modulation could be employed in a lowloss optical fiber entrance link from an antenna to a receiver panel several kilometers away. An overview is given of the direct modulation performance of highspeed semiconductor lasers, the highspeed response characteristics are described using a. Furthermore, increased damping at higher resonance frequencies limit the maximum bandwidth to 40 ghz. Highspeed modulation of semiconductor lasers ieee journals. For bias cur rents above 53 ma, the peak height mp decreases due to the increasing gain compression term. Wideband telecommunications require pulse code modulation pcm at bit rates in the neighborhood of. Index terms semiconductor lasers, intersymbol interfer ence, time.

Semiconductor lasers are an integral part of high speed telecommunications. Highspeed qmodulation of injectionlocked semiconductor. Technical achievements as well as an improved understanding of the role of carrier dynamics in the modulation response have made much. Highpower, 532 nmwavelength compact green laser module with high efficiency, highspeed modulation capability 19 january 2012 figure 1. Pdf highspeed modulation lasers for 100gbe applications. Practical limitations, including laser heating and gain compression, limit the maximum resonance frequency. The push for higher modulation frequencies, thereby allowing greater data rates, has motivated the scientific community for several decades.

High speed modulation of semiconductor lasers integrated. Ecent developments in semiconductor laser fabrication have led to dramatic improvements in highspeed direct modulation performance. Shaping current waveforms for direct modulation of semiconductor. Bistability, high speed modulation, noise and pulsations. Experimental and theoretical direct modulation and master amplitude and phase modulation are presented. Request pdf on researchgate high speed modulation of semiconductor lasers an overview is given of the direct modulation performance of highspeed. High speed modulation of semiconductor lasers request pdf. The push for higher modulation frequencies, thereby allowing greater data rates, has motivated the. Highspeed direct modulation of semiconductor lasers. Semiconductor lasers are an integral part of highspeed telecommunications. This thesis describes seven different subjects relevant to semiconductor laser diodes which fall in the following three categories. The fast modulation of lasers is a fundamental requirement for applications in optical communications, highresolution spectroscopy and metrology. A number of interesting applications exist for the direct modulation of semiconductor lasers at frequencies ranging from 1 to 10 ghz.