Abstract:
The electro-physical process in the discharge circuit of a copper vapor laser (CVL) with an LT-10Cu industrial gas-discharge tube has been studied. It is shown that the pumping of the active medium of the CVL is carried out in two stages. During the first (preparatory) stage, the capacitive components of the laser discharge circuit are charged from the storage capacitor, and during the second stage, the active medium is directly pumped. The transition from the preparatory stage to the pumping stage is carried out as a result of “breakdown”. It is shown that under these conditions it is possible to achieve a practical CVL efficiency of ~ 1% in pump circuits with magnetic compression units and ~ 2.5–3% when the energy input is cut off after the generation pulse. The conditions for implementing the mode of cutting off the energy input after the generation pulse are considered.
Keywords:
copper vapor laser, breakdown, energy input cutoff
References:
- Litlle C.E. Metal Vapour Lasers. Physics, Engineering and Application, New York: Wiley, 1999. 646 p.
- Batenin V.M., Buchanov V.V., Boichenko A.M., Kazaryan M.A., Klimovskii I.I., Molodykh E.I. High-Brightness Metal Vapour Lasers. Boca Raton: CRC, 2016. 542 p.
- Petrash G.G. Impul'snye gazovye lazery // Uspekhi fiz. nauk. 1971. V. 105, iss. 4. P. 645–676.
- Piotrovskij Yu.A., Reutova N.M., Tolmachev Yu.A. O roli stupenchatoj ionizatsii v protsessah formirovaniya inversnoj zaselennosti v lazerah na samoogranichennyh perekhodah // Opt. i spektroskop. 1984. V. 7, iss. 1. P. 99–104.
- Yudin N.A., Klimkin V.M., Prokop'ev V.E. Optogal'vanicheskij effekt v lazere na samoogranichennyh perekhodah atoma medi // Kvant. elektron. 1999. V. 28, N 3. P. 273–276.
- Bohan P.A., Gerasimov V.A., Solomonov V.I., Shcheglov V.B. O mekhanizme generatsii lazera na parah medi // Kvant. elektron. 1978. V. 5, N 10. P. 2162–2173.
- Hogan G.P., Webb C.E. Pre-ionization and discharge breakdown in the copper vapour laser: the phantom current // Opt. Commun. 1995. V. 117, N 5. P. 570–579.
- Evtushenko G.S., Kostyrya I.D., Suhanov V.B., Tarasenko V.F., Shiyanov D.V. Osobennosti nakachki lazera na parah medi i bromida medi // Kvant. elektron. 2001. V. 31, N 8. P. 704–708.
- Yudin N.A., Suhanov V.B., Gubarev F.A., Evtushenko G.S. O prirode fantomnyh tokov v aktivnoj srede lazerov na samoogranichennyh perekhodah atomov metallov // Kvant. elektron. 2008.V. 38, N 1. P. 23–29.
- Singh D.K., Dikshit B., Vijayan R., Nayak A., Mishra S.K., Mukherjee J., Rawat V.S. Dependence of phantom current in a metal vapor laser on electrode geometry // Laser Phys. 2020. V. 30, N 11. P. 115001.
- Yudin N.A., Baalbaki H.A., Nocheva C.V., Smirnova M.E., Yudin N.N. Discharge formation in a copper vapor laser: Optimal pumping conditions // Laser Phys. 2021. V. 31, N 12. P. 125001.
- Grigor'yants A.G., Kazaryan M.A., Lyabin N.A. Lazery na parah medi: konstruktsiya, harakteristiki i primeneniya. M.: FIZMATLIT, 2005. 312 p.
- Bohan P.A., Gerasimov V.A. Optimizatsiya uslovij vozbuzhdeniya v lazere na parah medi // Kvant. elektron. 1979. V. 6, N 4. P. 451–455.
- Bohan P.A., Zakrevskij D.E., Lavruhin M.A., Lyabin N.A., Chursin A.D. Vozbuzhdenie i relaksatsiya metastabil'nyh sostoyanij atomov v aktivnoj srede impul'sno-periodicheskogo lazera na parah medi // Kvant. elektron. 2016. V. 46, N 2. P. 100–105.
- Isaev A.A., Mihkel'soo V.T., Petrash G.G., Peet V.E., Ponomarev I.V., Treshchalov A.B. Kinetika vozbuzhdeniya rabochih urovnej lazera na parah medi v rezhime sdvoennyh impul'sov // Kvant. elektron. 1988. V. 15, N 12. P. 2510–2513.
- Bohan P.A., Zakrevskij D.E. Vliyanie soglasovaniya generatora nakachki s lazernoj trubkoj i uslovij nakachki na relaksatsiyu metastabil'nyh sostoyanij i chastotno-energeticheskie harakteristiki lazera na parah medi // Kvant. elektron. 2002, V. 32, N 7. P. 602–608.
- Bohan P.A., Zakrevskij D.E., Lavruhin M.A. Issledovanie gazorazryadnogo lazera na samoogranichennom perekhode talliya // Kvant. elektron. 2009. V. 39, N 10. P. 911–916.