Title :
Capability Limitations for Slow Light Using Vertical-Cavity Surface-Emitting Laser Amplifier
Author :
Yanan Ma ; Bin Luo ; Wei Pan ; Lianshan Yan ; Xihua Zou ; Di Zheng ; Jianpeng Zhao ; Nianqiang Li
Author_Institution :
Sch., Southwest Jiaotong Univ., Chengdu, China
Abstract :
An analytical expression for the delay-bandwidth product (DBP) of slow light in a vertical-cavity surface-emitting laser (VCSEL) is derived and experimentally confirmed. The expression and theoretical results show that the DBP has a maximum value, which is only dependent on the front facet reflectivity of the VCSEL. For a practical VCSEL with the front facet reflectivity exceeding 90%, the resulting maximum DBP is close to a fixed value of 0.64. The expression and the results are also verified by the measured DBP of a VCSEL with different bias currents.
Keywords :
laser cavity resonators; semiconductor optical amplifiers; slow light; surface emitting lasers; DBP; VCSEL; bias currents; delay-bandwidth product; front facet reflectivity; semiconductor lasers; slow light; vertical-cavity surface-emitting laser amplifier; Bandwidth; Delays; Optical attenuators; Reflectivity; Slow light; Vertical cavity surface emitting lasers; Delay-bandwidth product (DBP); slow light; vertical-cavity surface-emitting laser (VCSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2253546
