November 6, 2019 David Kuo General Counsel and Corporate Secretary Applied Optoelectronics, Inc. 13139 Jess Pirtle Blvd. Sugar Land, TX 77478 Re: Applied Optoelectronics, Inc. Registration Statement on Form S-3 Filed October 24, 2019 File No. 333-234310 Dear Mr. Kuo: We have limited our review of your registration statement to those issues we have addressed in our comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to this letter by amending your registration statement and providing the requested information. If you do not believe our comments apply to your facts and circumstances or do not believe an amendment is appropriate, please tell us why in your response. After reviewing any amendment to your registration statement and the information you provide in response to these comments, we may have additional comments. Registration Statement on Form S-3 filed October 24, 2019 Description of Capital Stock Choice of Forum, page 11 1. We note that your forum selection provision identifies the Court of Chancery of the State of Delaware as the exclusive forum for certain litigation, including any "derivative action." Please disclose whether this provision applies to actions arising under the Securities Act or Exchange Act. In that regard, we note that Section 27 of the Exchange Act creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and regulations thereunder, and Section 22 of the Securities Act creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rules and regulations thereunder. If the provision applies to Securities Act claims, please also revise David Kuo Applied Optoelectronics, Inc. November 6, 2019 Page 2 your prospectus to state that there is uncertainty as to whether a court would enforce such provision and that investors cannot waive compliance with the federal securities laws and the rules and regulations thereunder. If this provision applies to the Securities Act, please revise your prospectus to include related risk factor disclosure. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Refer to Rules 460 and 461 regarding requests for acceleration. Please allow adequate time for us to review any amendment prior to the requested effective date of the registration statement. Please contact Asia Timmons-Pierce (Special Counsel) at 202-551-3754 or Jay Ingram (Legal Branch Chief) at 202-551-3397 with any other questions. FirstName LastNameDavid Kuo Sincerely, Comapany NameApplied Optoelectronics, Inc. Division of Corporation Finance November 6, 2019 Page 2 Office of Manufacturing FirstName LastName