Mid-infrared 1 W hollow-core fiber gas laser source

Hollow core waveguide as mid-infrared laser modal beam filter

Gas Sensor Based on Large Hollow-Core Photonic Bandgap Fiber

One concern in using photonic band-gap fiber (PBGF) as a gas sensor is the response time. In this type of the gas sensors, response time is the time required for gas to diffuse into the hollow-core. So considering a large hollow-core PBGF (HC-PBGF), the response time can be significantly reduced. But in the large HC-PBGF, the fundamental issue is the presence of higher order modes (HOMs). Somet...

Hollow Core Fiber Optics for Mid-Wave and Long-Wave Infrared Spectroscopy

We describe the development and testing of hollow core glass waveguides (i.e., fiber optics) for use in Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR) spectroscopy systems. Spectroscopy measurements in these wavelength regions (i.e., from 3 to 14 μm) are useful for detecting trace chemical compounds for a variety of security and defense related applications, and fiber optics are a key e...

Deep-Ultraviolet to Mid-Infrared Supercontinuum in Single-Ring Hollow-Core Photonic Crystal Fiber

We report the first supercontinuum generated in a gas-filled single-ring hollow-core PCF. When pumped with ultrashort pulses at 1500 nm, the emitted spectrum spans three octaves from the deep ultraviolet to the mid-infrared. OCIS codes: (060.0060) Fiber optics and optical communications; (190.0190) Nonlinear optics (320.0320) Ultrafast optics

Hollow-core Optical Fiber Gas Lasers (HOFGLAS): a review [Invited]

The development of hollow core photonic crystal fibers with low losses over a broad spectral region in the near IR enabled the demonstration of a novel laser type Hollow-core Optical Fiber Gas Laser (HOFGLAS). The laser combines attractive features of fiber lasers such as compactness and long interaction length of pump and laser radiation with those of gas lasers such as the potential for high ...