Operator's manual for Multiple Integrated Laser Engagement System (MILES), simulator system, firing laser, M63 (NSN 1265-01-077-6082) for M113APC and M220 TOW vehicle.

"July 1988."

Operator's manual : Multiple Integrated Laser Engagement System (MILES) simulator system, firing laser, M62 (NSN 1265-01-090-0103) for DRAGON weapon system.

"July 1988."

Operator's manual for Multiple Integrated Laser Engagement System (MILES) indicator, simulator system, laser target interface device (LTID) (NSN 1265-01-221-9438).

"December 1989."

Hand receipt covering contents of components of end item (COEI), basic issue items (BII), and additional authorization list (AAL) for Multiple Integrated Laser Engagement System (MILES), simulator system, firing, laser, M82, NSN 1265-01-137-7697, for M1/M1A1 Abrams tank.

"November 1989."

Operator's manual for Multiple Integrated Laser Engagement System (MILES), simulator system, firing, laser, M77, NSN 1265-01-154-9887, for Chaparral weapon system.

"October 1984."

Organizational maintenance repair parts and special tools lists for laser infrared observation set AN/GVS-5, (NSN 5860-01-062-3543).

Includes index.

Organizational maintenance manual : laser infrared observation set AN/GVS-5 (NSN 5860-01-062-3543).

"May 1979."

Direct support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for laser infrared observation set AN/GVS-5 (NSN 5860-01-062-3543).

"1 July 1981."

Direct support maintenance manual : test set, laser infrared observation device TS-3620/GVS-5 (NSN 5860-01-052-9477).

Includes index.

Contract pricing : material prices overstated on Ground/Vehicular Laser Locator Designators: report to the Commander, U.S. Army Missile Command, Department of the Army /

"B-219741"--p.1.

Laser-triggered switch study

"Technical report no. RADC-TR-66-428. Interim report."

Highly refractive index sensitive femtosecond laser inscribed long period gratings

The distinct behaviour of femtosecond laser inscribed long period gratings, with a non-uniform index perturbation within the optical fibre core, has been studied experimentally. The non-uniform laser-induced perturbation results in light coupling from the core mode to a greater number of cladding modes than is the case with their UV laser inscribed counterparts, and this is made evident from the surrounding refractive index (SRI) grating response. Femtosecond inscribed long period gratings are shown to simultaneously couple to multiple sets of cladding modes. A 400μm LPG is shown to result in attenuation peaks that have both blue and red wavelength shifts over a 1250nm to 1700nm wavelength range. This gives rise to SRI sensitivities far greater than anything achievable by monitoring a single attenuation peak. The maximum sensitivity produced by monitoring a single attenuation peak was 1106nm/RIU, whereas monitoring opposing wavelength shifts resulted in a significantly improved sensitivity of 1680nm/RIU. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Advanced UV inscribed fibre grating structures and applications in optical sensing and laser systems

This thesis presents detailed investigation of UV inscribed fibre grating based devices and novel developments in the applications of such devices in optical sensing and fibre laser systems. The major contribution of this PhD programme includes the systematic study on fabrication, spectral characteristics and applications of different types of UV written in-fibre gratings such as Type I and IA Fibre Bragg Gratings (FBGs), Chirped Fibre Bragg Gratings (CFBGs) and Tilted Fibre Gratings (TFGs) with small, large and 45º tilted structures inscribed in normal silica fibre. Three fabrication techniques including holographic, phase-mask and blank beam exposure scanning, which were employed to fabricate a range of gratings in standard single mode fibre, are fully discussed. The thesis reports the creation of smart structures with self-sensing capability by embedding FBG-array sensors in Al matrix composite. In another part of this study, we have demonstrated the particular significant improvements made in sensitising standard FBGs to the chemical surrounding medium by inducing microstructure to the grating by femtosecond (fs) patterning assisted chemical etching technique. Also, a major work is presented for the investigation on the structures, inscription methods and spectral Polarisation Dependent Loss (PDL) and thermal characteristics of different angle TFGs. Finally, a very novel application in realising stable single polarisation and multiwavelength switchable Erbium Doped Fibre Lasers (EDFLs) using intracavity polarisation selective filters based on TFG devices with tilted structures at small, large and exact 45° angles forms another important contribution of this thesis.

Continuous-wave ultraviolet light induced fiber Bragg gratings in few- and single-mode microstructured polymer optical fibers

Reported are observations and measurements of the inscription of fibre Bragg gratings in two different types of microstructured polymer optical fibre: few-moded and endlessly single mode. Contrary to FBG inscription in silica microstructured fibre, where high energy laser pulses are a prerequisite, we have successfully used a low power CW laser source operating at 325nm to produce 1-cm long gratings with a reflection peak at 1570 nm. Peak reflectivities of more than 10% have been observed.

Inscription of in-fibre photonic devices by an infrared femtosecond laser

In this work, a point by point method for the inscription of fibre Bragg gratings using a tightly focused infrared femtosecond laser is implemented for the first time. Fibre Bragg gratings are wavelength-selective, retro-reflectors which have become a key component in optical communications as well as offering great potential as a sensing tool. Standard methods of fabrication are based on UV inscription in fibre with a photosensitive core. Despite the high quality of the gratings, a number of disadvantages are associated with UV inscription, in particular, the requirements of a photosensitive fibre, the low thermal stability and the need to remove the protective coating prior to inscription. By combining the great flexibility offered by the point by point method with the advantages inherent to inscription by an infrared femtosecond laser, the previous disadvantages are overcome. The method here introduced, allows a fast inscription process at a rate of ~1mm/s, gratings of lengths between 1cm and 2cm exhibiting reflections in excess of 99%. Physical dimensions of these gratings differ significantly from those inscribed by other methods, in this case the grating is confined to a fraction of the cross section of the core, leading to strong and controllable birefringence and polarisation dependent loss. Finally, an investigation of the potential for their exploitation towards novel applications is carried out, devices such as directional bend sensors inscribed in single-mode fibre, superimposed but non-overlapping gratings, and single-mode, single-polarisation fibre lasers, were designed, fabricated and characterised based on point by point femtosecond inscription.