Experimental investigation of an optically pumped mid-infrared carbon monoxide laser

State-to-state rotational rate constants for CO+He: Infrared double resonance measurements and simulation of the data using the SAPT theoretical potential energy surface

“…[30][31][32] An injection-seeded Nd:YAG laser ͑Spectra-Physics, GCR 170-10͒ with a 6 ns pulse width operating at 10 Hz provided 130 mJ of 1064 nm radiation for the OPO. The OPO output beam had a sub-Doppler bandwidth ͑ϳ165 MHz͒, a temporal pulse width of less than 6 ns, and an average pulse power of 1 mJ.…”

Numerical modeling and optimization of the optically pumped mid-infrared molecular laser

“…To check the correctness of the developed mathematical model, the numerical simulations results were compared with the experimental data published in the papers [1,2]. The experimental measurements were carried for the CO laser optically pumped by optical parametric oscillator (OPO) at the (2, 0) rotational-vibrational transitions near 2.3 µ.…”

“…For pure CO at the room temperature the R-T rate k RT is 4×10 -10 cm 3 ⋅sec -1 , while k VV is 3×10 -12 cm 3 ⋅sec -1 and k VT is 3×10 -17 cm 3 ⋅sec -1 [1,2]. At the 10 torr pressure this leads to relaxations times of 10 nsec, 1000 nsec and 100 msec respectively.…”

“…The optically pumped molecular gas lasers (CO, NO, HBr, HCl, HI) operating at the transitions between vibrational states are promising candidates for lasing in mid-IR spectral range [1,2,4]. Achieved experimental progress stimulates the theoretical investigations of these lasers.…”

C2H2 Gas Laser Inside Hollow-Core Photonic Crystal Fiber Based on Population Inversion

“…The laser has many of the advantages of optically pumped gas lasers (OPGLs), including high damage thresholds and the potential for coherent emission from mutually incoherent pump sources. Furthermore, OPGLs with molecular gases offer a variety of mid-IR wavelengths [1][2] specifically in the eye-safe wavelengths within the atmospheric transmission window. Creating an OPGL inside hollow fiber has the added advantage of confining the pump and laser light over long interaction lengths in a compact configuration.…”