Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 17,
  • Issue 9,
  • pp. 1662-
  • (1999)

Design and Demonstration of Polarization-Insensitive Mach-Zehnder Switch Using a Lattice-Matched InGaAlAs/InAlAs MQW and Deep-Etched High-Mesa Waveguide Structure

Not Accessible

Your library or personal account may give you access

Abstract

The authors have designed and demonstrated a 22 Mach-Zehnder switch in view of polarization independence as well as low propagation loss () and absorption change (). To obtain polarization-insensitive refractive index change (n), a lattice-matched InGaAlAs/InAlAs multiple quantum-well (MQW) with a large detuning wavelength was used. Moreover, to reduce the insertion loss difference between polarizations, we applied a multimode-interferometer 3-dB coupler and a deep-etched high-mesa waveguide structure. This switch, therefore, can provide polarization-independent operation about both driving voltage and insertion loss, which is indispensable to practical optical switching applications. We also paid attention to suppression when we decided the value of wavelength detuning and the length of the phase shift region. We also investigated the wavelength dependence of the switch. Within 1530-1560 nm, which is the erbium-doped fiber amplifier (EDFA) gain band, polarization independence in the driving voltage and the crosstalk was maintained. This result shows that the switch is also applicable in wavelength division multiplexing (WDM) applications.

[IEEE ]

PDF Article
More Like This
Polarization dependence of quantum-confined Stark effect in Ge/SiGe quantum well planar waveguides

Papichaya Chaisakul, Delphine Marris-Morini, Giovanni Isella, Daniel Chrastina, Xavier Le Roux, Samson Edmond, Jean-René Coudevylle, Eric Cassan, and Laurent Vivien
Opt. Lett. 36(10) 1794-1796 (2011)

Polarization-insensitive 2 × 2 thermo-optic Mach–Zehnder switch on silicon

Shipeng Wang and Daoxin Dai
Opt. Lett. 43(11) 2531-2534 (2018)

Low-voltage quantum well microring-enhanced Mach-Zehnder modulator

Hiroki Kaneshige, Rajdeep Gautam, Yuta Ueyama, Redouane Katouf, Taro Arakawa, and Yasuo Kokubun
Opt. Express 21(14) 16888-16900 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved