Low-loss waveguide optical isolator with tapered mode converter and magneto-optical phase shifter for TE mode input

Chapter 5: Polarization-Independent Magneto-Optical Isolator Using TM-Mode Nonreciprocal Phase Shift

TM-mode AlGaInAs/InP Amplifying Waveguide Optical Isolator with 12.7dB Isolation

We present the development of a monolithically integratable optical isolator. The device is a semiconductor optical amplifier with magnetized ferromagnetic metal contact. 12.7dB isolation and optical transparency are demonstrated. The spectral dependence is studied. ©2005 Optical Society of America OCIS codes: (230.3240) Isolators; (250.5980) Semiconductor optical amplifiers; (230.3810) Magneto...

Optical mode structure of the air waveguide.

Analysis is performed on propagation of light in long-lived optical waveguides in air generated by arrays of femtosecond filaments. Mode structure, leakage losses, and coupling efficiency are studied analytically and numerically as a function of wavelength and time delay after the waveguide-initiating filaments.

Mode Order Converter Using Tapered Multi-mode Interference Couplers

Tapered MMI devices are proposed. It is demonstrated that the proposed single-stage MMI device's output power efficiency can be 55% higher than a conventional adiabatic taper by partially capturing the 2nd order mode power. ©2010 Optical Society of America OCIS codes: (130.3120) Integrated optics devices; (130.2790) Guided waves

Analysis of optical properties of fundamental-mode in waveguide tapered fibers

An analysis of optical properties of fundamental-mode in waveguide tapered fibers is theoretically investigated and realized in this paper. The waveguide device is tapering an SMF-28 fiber to few tens of micrometers of diameter. For discussing the cladding size of waveguide structure affects the fundamental-mode cutoff (FMC) and the optical characteristics of the devices, to etch outer cladding...