Exhibit 23.2




                         Consent of Independent Auditors

We consent to the incorporation by reference in the Registration Statement (Form
S-8  Nos. 333-44500, 333-44488, 333-44486, and 333-74214) of APA Optics, Inc. of
our  report  dated May 11, 2001, with respect to the financial statements of APA
Optics,  Inc.  for  the  year  ended  March 31, 2001 included in this Form 10-K.


                                      /s/ Ernst & Young LLP

Minneapolis,  Minnesota
June  27,  2003