Ms. Shuangzhi Wei Profile

Shuangzhi Wei

at Huazhong Univ of Science and Technology

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 March 2021 Paper

Design of 2.3 µm low threshold single mode GaSb DBR lasers based on high order slotted surface grating

Shuangzhi Wei, Wei Sun, Qiaoyin Lu, Weihua Guo

Proceedings Volume 11763, 117638I (2021) https://doi.org/10.1117/12.2587599

Read Abstract +

Semiconductor lasers emitting in the mid-infrared wavelength region are of particular importance since the strong absorption bands of several technologically and industrially relevant gas species are located in this range, such as CO, CH₄, NH₃ and HF. These lasers are generally required a low throshold current with good single mode operation for simple and accurate gas detection. GaSb-based semiconductor material is an ideal system for realizing this mid-infrared laser due to its narrow bandgap. In this paper, we present a new design of high performance single mode GaSb DBR laser based on high order slotted surface grating for gas detection. The 2D scattering matrix method combing with the time-domain travelling-wave model has been used for the optimization of slotted surface grating to enlarge the reflection and reduce the loss. The designed 2.3μm single mode GaSb surface-grating DBR laser has been predicted with a low threshold-current of about 8 mA and a slope efficiency of about 0.14 mW/mA. The laser scheme is of a single wafer growth, can be easily fabricated, and thus has great potential to realize cost effective with high reliability.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years