A compact integrated InP-based single-phasar optical crossconnect

Abstract

Abstract-The first integrated InP-based polarization independent optical crossconnect is reported. The device can crossconnect signals at four wavelengths independently from two input fibers to two output fibers. Total on-chip loss is less then 16 dB. Device size is 7 2 9 mm 2 .

Polarization independent dilated WDM cross-connect on InP

“…Here, we present an improved OXC processed on a CBEgrown wafer which is much more uniform than the MOVPEgrown wafers we used in our earlier OXC's [6], [7]. By using a dilated (or double-gate) switch scheme we also demonstrate an improvement of the crosstalk performance to better than 20 dB for both polarization states.…”

“…The first InP polarization independent WDM optical crossconnect (OXC) was reported by us [6] and used a single PHASAR for all (de)multiplex operations to prevent losses due to mismatch of the PHASAR responses. In this configuration however the performance of the device is limited by coherent signal-crosstalk beat noise [8] (worst case TM crosstalk 11 dB).…”

Polarization-insensitive PECVD SiC waveguides for photonic sensing

“…Like the shrinking of electronic building blocks allowing billions of elements on a single chip nanostructures in photonics opens similar integration perspectives [1]. Because the size of the components decrease, the propagation loss is no longer an obstacle allowing then the use of material never considered in the past.…”

Low-loss, compact, and polarization independent PHASAR demultiplexer fabricated by using a double-etch process

“…P HASED-ARRAY demultiplexers [1] are important components in multiwavelength lasers (MWLs) [2], [3] and integrated wavelength-selective switches such as add-drop multiplexers (ADMs) [4] and optical crossconnects (OXCs) [5], [6]. The increasing amount of components integrated on a single chip results in severe demands on wafer uniformity and processing.…”