Novel design of Y-branch in LiNbO3 by proton exchange

Shanying Lu; Xiaoping Zhou; Xiaoqing Jiang; Minghua Wang

doi:10.1117/12.481216

28 August 2002 Novel design of Y-branch in LiNbO₃ by proton exchange

Shanying Lu, Xiaoping Zhou, Xiaoqing Jiang, Minghua Wang

Proceedings Volume 4904, Optical Fiber and Planar Waveguide Technology II; (2002) https://doi.org/10.1117/12.481216
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

We design and analyze a novel low-loss symmetric Y-branch in Lithium Niobate by heavily annealed proton exchange (APE). In this design, a wide transitional waveguide is used between the input and two S-shape output waveguides, making the field match with the mode in the two output waveguides by intentionally generating second-order mode and radiation. By this method, optical power can be coupled into the two output waveguides with high efficiency. simultaneously , the minimum gap between the two output waveguides is 2.7 microns, thus the stem region of this Y-branch has no sharp taper and the fabrication of the device is easy. The Y-branch is optimized by the method of three-dimensional FD-BPM, after optimization, losses can be less than 0.05dB.

Citation Download Citation

Shanying Lu, Xiaoping Zhou, Xiaoqing Jiang, and Minghua Wang "Novel design of Y-branch in LiNbO₃ by proton exchange", Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); https://doi.org/10.1117/12.481216

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Waveguides

Diffusion

Integrated optics

Lithium niobate

Annealing

Computer simulations

Information science

Show All Keywords

Keywords/Phrases

Search In:

Publication Years