Optical Coupler Interference Suppression

A Review of Optical Coupler Theory, Techniques, and Applications

optical couplers. Coupling at optical frequencies presents challenges to achieving high efﬁciency, compactness, high fabrication tolerance, and ease of integration in photonic integrated...

High performance multimode interference couplers for coherent

nsulator platform, which enables ultra-compact designs and CMOS compatible fabrication. Specifically, we discuss the design and experimental characterization of high performance 2x4 multimode

Stably suppressing laser relative intensity noise on a 3 × 3 coupler

A 3 × 3 coupler multiphase demodulation scheme is proposed to eliminate the impact of working point drifting and the laser relative intensity noise (RIN) on a 3 × 3 coupler interferometric

Multimode Interference Waveguides

Why Multimode Interference Waveguides? Higher tolerance to dimension changes in fabrication process Easier fabrication process than other couplers Do not require submicron gaps found in directional

A Multimode Interference coupler with low reflections

An efficient MMI coupler design for back reflection suppression is presented. The design is suitable for shallow and deep etched devices and for 1x2 and 2x2 MMI couplers.

Common-mode intensity noise suppression scheme in phase

This paper proposes a common-mode intensity noise suppression scheme for 3 × 3 coupler phase demodulation based on the ellipse fitting algorithm to lower the noise floor of the

Multimode interference coupler based on general interference for

In this paper, we have reviewed different GIMMI structures reported previously. Different waveguide materials are mentioned and compared for fabrication of GIMMI device.

Mechanism analysis and suppression of interference effects in Multi

The findings provide a solid theoretical foundation and engineering guidance for the structural design and interference suppression of high-performance optical systems, offering

Electro-Optic Modulator With Tunable Multimode Interference

Abstract: We propose a Mach-Zehnder electro-optic modulator (MZM) in which conventional waveguide Y branches are replaced by a tunable 2 × 2 coupler and a 1 × 2 coupler

All-Optical Signal Processing Circuits Using Multimode Interference

This chapter provides the background theory of multimode interference (MMI) couplers upon which a class of all-optical signal processing circuits are based. The amplitudes and phases of three kinds of

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