Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-157291) of GigOptix, Inc. of our report dated March 31, 2009 relating to the financial statements, which appears in this Form 10-K.

/s/    PRICEWATERHOUSECOOPERS LLP

San Jose, California

March 31, 2009