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S-1/A - S-1/A - APPLIED OPTOELECTRONICS, INC.a2218972zs-1a.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We have issued our report dated March 6, 2014, with respect to the consolidated financial statements included in the Annual Report of Applied Optoelectronics, Inc. on Form  Applied Optoelectronics, Inc., which are included in this Registration Statement. We consent to the inclusion in the Registration Statement of the aforementioned report, and to the use of our name as it appears under the caption "Experts."

/S/ GRANT THORNTON LLP

Houston, Texas
March 14, 2014