Decrease scattering loss induced by surface roughness through waveguide structure optimization

Chuanlu Deng; Tao Zhu; Lili Guo; Jianhui Wang; Zhiqiang Song; Yana Shang; Fufei Pang; Tingyun Wang

doi:10.1117/12.2193272

5 August 2015 Decrease scattering loss induced by surface roughness through waveguide structure optimization

Chuanlu Deng, Tao Zhu, Lili Guo, Jianhui Wang, Zhiqiang Song, Yana Shang, Fufei Pang, Tingyun Wang

Proceedings Volume 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing; 96190R (2015) https://doi.org/10.1117/12.2193272
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

This paper focuses on a method to decrease the scattering loss induced by surface roughness through waveguide structure optimization. First, the concept of roughness is discussed briefly, and the diagram of waveguide surface roughness tested by optical profiler is given. Then, this report mainly analyzes the influence on scattering loss coefficient and total loss coefficient induced by surface roughness under different waveguide parameters. The study finds that the scattering loss coefficient and the total loss coefficient increase as roughness increasing. Last, the part produces a method to decrease scattering loss induced by roughness through waveguide structure optimization importantly. It is found that the total scattering loss coefficient can be decreased greatly if waveguide core size is in range from 60 μm to 80 μm or the parameter Δ is smaller than 0.016. When surface roughness is 200 nm, the correlation length is 4 μm, waveguide length is 100 cm, and core width (height, a=b) is from 30 μm to 70 μm, the total scattering loss coefficient can decrease from 3.37×10^-2 dB/cm to 1.65×10^-2 dB/cm.

Citation Download Citation

Chuanlu Deng, Tao Zhu, Lili Guo, Jianhui Wang, Zhiqiang Song, Yana Shang, Fufei Pang, and Tingyun Wang "Decrease scattering loss induced by surface roughness through waveguide structure optimization", Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 96190R (5 August 2015); https://doi.org/10.1117/12.2193272

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
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Waveguides

Scattering

Surface roughness

Refractive index

Waveguide modes

Cladding

Single mode fibers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years