S.Amdt. 455

SA 455. Mr. PADILLA submitted an amendment intended to be proposed by
him to the bill S. 2226, to authorize appropriations for fiscal year
2024 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 II, insert the following:

SEC. 2__. STUDY ON USE OF MONOLITHIC INDIUM PHOSPHIDE SYSTEM
ON CHIP PHOTONIC INTEGRATED CIRCUITS IN DEFENSE
SUPPLY CHAINS.

(a) Study.--The Secretary of Defense shall conduct [a]
study on the benefits, challenges, and opportunities
associated with the use of monolithic indium phosphide system

[[Page S2617]]

on chip photonic integrated circuits (referred to in this
section as ``MInPSOCPICs'') in supply chains of the
Department of Defense.
(b) Elements.--The study under subsection (a) shall address
the following:
(1) The potential of use of MInPSOCPICs for defense
applications such as--
(A) secure and high-speed communications networks,
including satellite based networks;
(B) quantum information systems, sensing, and
communications;
(C) microelectronics hardware architectures supporting
artificial intelligence applications;
(D) precision position, timing, and navigation sensors,
such as short and long-range Light Detection and Ranging
systems or atomic clocks;
(E) directed energy weapons; and
(F) other such applications as determined by the Secretary.
(2) The benefits associated with the use of MInPSOCPICs in
the Department supply chains, including benefits with respect
to power consumption, thermal management, light generation
and transmission, speed of data transfer, level of
integration and functional complexity, compatibility with
other electronics technologies, cost, size, performance
(linearity, noise, signal-to-noise-ratio, and output power),
and reliability of MInSOCPICs.
(3) The challenges associated with the use of MInPSOCPICs
in the Department supply chains, including challenges
relating to--
(A) domestic production at scale of MInPSOCPICs;
(B) availability of domestic sources of MInPSOCPICs;
(C) reliance on, development and use of, and attempts to
produce by foreign adversaries related to MInPSOCPICs,
heterogenous photonic integrated circuits, and indium and
phosphide-based microelectronics generally and at scale;
(D) ability to scale the integration and packaging of
MInPSOCPICs; and
(E) ability to integrate diverse functions for critical
applications on MInPSOCPICs.
(4) The opportunities associated with the use of
MInPSOCPICs in the Department supply chains, including
opportunities for new technology developments and
applications, and heterogeneously integrated indium and
phosphide photonic integrated circuits for defense purposes.
(5) Potential applications of MInPSOCPICs and heterogeneous
integrated photonic integrated circuits to support
international allies and partners of the United States.
(6) Costs associated with the development and use of
MInPSOCPICs and heterogeneous integrated photonic integrated
circuits, including--
(A) costs for further research and development unilaterally
and in conjunction with international allies and partners;
and
(B) identification of the resources needed to procure or
develop technologies based on MInPSOCPICs and heterogenous
integrated photonic integrated circuits.
(7) Any policies, resource constraints, or technical
challenges that limit the ability of each Secretary of a
military department to develop and use MInPSOCPICs and
heterogeneously integrated photonic integrated circuits in
its supply chains, including an assessment of the cost
related to the procurement of MInPSOCPICs at scale or for
specialized applications.
(c) Report.--Not later than 180 days after the date of the
enactment of this Act, the Secretary shall submit to the
Committee on Armed Services of the Senate and the Committee
on Armed Services of the House of Representatives a report on
the findings of the Secretary with respect to the Study
conducted under subsection (a).
(d) Form.--The report required under subsection (c) shall
be submitted in unclassified form, but may include a
classified annex.
(e) Definitions.--In this section:
(1) The term ``heterogeneous photonic integrated circuit''
means a photonic integrated circuit fabricated using and
composed more than one base element and not including
silicon.
(2) The term ``Monolithic Integrated Photonic Indium
Phosphide System on Chip Photonic Integrated Circuit'' means
a photonic integrated circuit fabricated using and composed
of the base elements indium and phosphide with diverse
functions on such circuit monolithically integrated to
include a laser, a modulator, detector, and optical
waveguides.
(3) The term ``photonic integrated circuit'' means an
integrated circuit fabricated from a compound semiconductor
and containing photonic elements that perform analog or
digital functions with photons.
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