Design of millimeter wave optical modulators with monolithically integrated narrowband impedance matching circuits for 1.3-um photonic links

Hsin Hsing Liao; X. B. Mei; Kwok Kwong Loi; Charles W. Tu; Paul K. L. Yu; Peter M. Asbeck; William S. C. Chang

doi:10.1117/12.258993

22 November 1996 Design of millimeter wave optical modulators with monolithically integrated narrowband impedance matching circuits for 1.3-um photonic links

Hsin Hsing Liao, X. B. Mei, Kwok Kwong Loi, Charles W. Tu, Paul K. L. Yu, Peter M. Asbeck, William S. C. Chang

Author Affiliations +

Proceedings Volume 2844, Photonics and Radio Frequency; (1996) https://doi.org/10.1117/12.258993
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

To implement millimeter wave photonic links using high speed optical modulators, RF input efficiency to the modulator is an important consideration. In this paper we discuss design and fabrication of ultra high speed multiple quantum well electro-absorption modulators for narrow band applications up to 40 GHz. In order to obtain higher RF efficiency at working frequencies of 20 GHz, 25 GHz and 40 GHz, modulators with monolithically integrated matching circuits were designed and fabricated utilizing co-planar waveguide MMIC technologies. Measurement results show excellent matching at specific frequencies with S11 of -16 dB for the 20 GHz devices, -20 dB for the 25 GHz devices and -36 dB for the 40 GHz devices. At least 6 dB of improvement on optical modulation efficiency can be expected over modulators without impedance matching.

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Hsin Hsing Liao, X. B. Mei, Kwok Kwong Loi, Charles W. Tu, Paul K. L. Yu, Peter M. Asbeck, and William S. C. Chang "Design of millimeter wave optical modulators with monolithically integrated narrowband impedance matching circuits for 1.3-um photonic links", Proc. SPIE 2844, Photonics and Radio Frequency, (22 November 1996); https://doi.org/10.1117/12.258993

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