Okay, I had a look at http://www.poet-technologies.com/docs/POET-Overview.pdf, which is, as Green88 has correctly pointed out, a completely new text. The former "POET Overview" was a very technical paper on optical chip interconnects.

The new version is a general and easy to read description of the POET technology and market opportunities. While we haven't heard of or discussed military applications, this paper mentions a few (see excerpts below). The paper closes with an overview of the POET devices.

While you should read the whole paper by following this link, I'd like to wet your appetite by a few quotes (highlighting by me):

• "… thus substantially broadening the capabilities of GaAs device technology."
• "… allowing for much improved power efficiency and speed, in addition to the combination of analog and digital circuits in a single chip design."
• "optical and electronic devices within a single chip"
• "Utilizing industry standard circuit design tools and process flows enables low adoption cost for implementation of POET."
• "The primary additional requirement to convert silicon CMOS foundries to POET manufacturing would involve the acquisition of molecular beam epitaxy (“MBE”) capability for the pre-processed GaAs wafers, or outsourcing the purchase of such wafers."
• The Company’s business plan is to provide a complete entry level prescription for the POET integration platform, and thereby work with key players in the semiconductor industry value chain, including circuit design houses, software tool providers, foundries, assembly houses and test tool providers as well as electronic original equipment manufacturers (“OEMs”), to showcase the capabilities of POET technology and then enable large scale manufacturing of GaAs VLSI optoelectronic circuits.
• In the short term, POET’s current development efforts may allow future licensees to address opportunities in the following markets:
  • Pad, Tablet and Cloud OS-type PC devices — …
  • Smartphones — …
  • Digital and Smart TVs — …
  • Smart Grids and Advanced Metering Infrastructure (AMI) — …
  • "Internet of Things" — …
• "GaAs has been a long-standing choice for high-frequency devices and circuits, although existing (pre-POET) GaAs digital devices do not provide the performance that metal oxide semiconductor field effect transistor devices provide."
• "Important to the military is POET’s potential to integrate digital, radio frequency and optical technologies in a single integrated circuit, which is designed to satisfy the documented high-performance capability needs for multiple space systems of all branches of the department of defense."
• "POET’s architecture, which incorporates a dense mix of active optical elements and optical waveguides together with logic and mixed signal elements, is designed to enable a wide variety of space-system components. These components, when developed, could be combined to enable a number of applications including high speed transceivers for laser communications, radio frequency transceivers, radiofrequency and optical phased arrays, opto-electronic interconnects, analog-to-digital and digital-to-analog converters, uncooled visible, mid-wavelength infrared and long-wave infrared imagers, optical memory, opto-electronic and radio frequency apertures, ultra-wide-band sources and receivers, low-light-level sensors, single photon counters and optical correlators.
• POET could have the ability to offer a low-cost monolithic solution to [military] multi-spectral imaging. The compact array could provide: (i) detection, readout and analog-to-digital conversion on a single chip; (ii) a common axis for ultraviolet, visible and infrared imaging; (iii) wavelength scanning; and (iv) 300K operation with no cooling required. The Space Foundation has indicated that this technology satisfies Space Situational Awareness (“SSA”) sensor requirements by providing required capability with significantly reduced size, weight and power. In addition, the Air Force Communications Command and Control Division (“C3”) Tech Area Plan identifies mid-and long-term space communication and C3 technology challenges that require the photonic applications that POET is designed to provide.