S.Amdt. 2558

SA 2558. Mr. PADILLA submitted an amendment intended to be proposed
by him to the bill S. 4638, to authorize appropriations for fiscal year
2025 for military activities of the Department of Defense, for military
construction, and for defense activities of the Department of Energy,
to prescribe military personnel strengths for such fiscal year, and for
other purposes; which was ordered to lie on the table; as follows:

At the appropriate place in title X, insert the following:

SEC. ___. BRIEFING ON INDIUM PHOSPHIDE OPTICAL COMPOUND
SEMICONDUCTORS AND PHOTONIC INTEGRATED
CIRCUITS.

Not later than March 1, 2025, the Assistant Secretary of
Defense for Critical Technologies shall, in coordination with
the Assistant Secretary of Defense for Industrial Base
Policy, provide to the Committee on Armed Services of the
Senate a briefing on the following:
(1) The Department of Defense's current and potential uses
of indium phosphide optical compound semiconductors or
photonic integrated circuits technology.
(2) An assessment of the dependence of the United States on
China for substrates, fabrication, advanced test and
packaging, and finished products containing indium phosphide
optical compound semiconductors or photonic integrated
circuits.
(3) An assessment of supply chain vulnerabilities for
indium phosphide optical compound semiconductors.
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