Small-signal frequency response of long-wavelength vertical-cavity lasers

• Published in: IEEE photonics technology letters Vol. 13; no. 10; pp. 1049 - 1051
• Main Authors: Black, K.A., Bjorlin, E.S., Piprek, J., Hu, E.L., Bowers, J.E.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-10-2001; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bandwidth; Current efficiency; Damping; Devices; Frequency response; High speed; Lasers; Modulation; Networks; Pump lasers; Resonance; Resonant frequency; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers; Wafer bonding
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/68.950731

The small-signal frequency response of long-wavelength vertical-cavity lasers (LW-VCLs) is of interest in determining the ultimate bandwidth of these devices for use in terrestrial networks. This letter analyses two distinct device structures of double wafer-bonded vertical-cavity lasers operating at 1.5 μm and compares their high-speed performance. We demonstrate the highest modulation bandwidth and the highest modulation current efficiency of an electrically pumped LW-VCL of 7 and 4.1 GHz//spl radic/mA, respectively.