[1] Scholle K, Fuhrberg P, Koopmann P, et al. 2m Laser Sources and Their Possible Applications[M]. New York:InTech Open Access Publisher, 2010.
[2] Sijan A. Development of military lasers for optical countermeasures in the mid-IR[C]//SPIE, 2009, 7483:748304.
[3] Choi H K, Eglash S J. High-power multiple-quantum-well GaInAsSb/AlGaAsSb diode lasers emitting at 2.1m with ow threshold current density[J]. Applied Physics Letters, 1992, 61(10):1154-1157.
[4] Shu S L, Tong C Z, Wang L J, et al. Progress of optically pumped GaSb based semiconductor disk laser[J]. Opto-Electronic Advances, 2018, 1(2):170003.
[5] Kim G, Shterengas L, Martinelli R U, et al. High-power room-temperature continuous wave operation of 2.7 and 2.8m In(Al)Ga AsSb/GaSb diode lasers[J]. Applied Physics Letters, 2003, 83(10):1926-1928.
[6] Donetsky D, Kipshidze G, Shterengas L, et al. 2.3m type-I quantum well GaInAsSb/AlGaAsSb/GaSb laser diodes with quasi-CW output power of 1.4 W[J]. Electronics Letters, 2007, 43(15):810-811.
[7] Vizbaras K, Amann M C. Room-temperature 3.73m GaSb-based type-I quantum-well lasers with quinternary barriers[J]. Semiconductor Science Technology, 2012, 27(3):032001.
[8] Faist J, Capasso F, Sirtori C, et al. Vertical transition quantum cascade laser with Bragg confined excited state[J]. Applied Physics Letters, 1995, 66(5):538-540.
[9] Beck M, Hofstetter D, Aellen T, et al. Continuous wave operation of a mid-infrared semiconductor laser at room temperature[J]. Science, 2002, 295(5553):301-305.
[10] Bai Y, Bandyopadhyay N, Tsao S, et al. Highly temperature insensitive quantum cascade lasers[J]. Applied Physics Letters, 2010, 97(24):251104.
[11] Faist J, Cappasso F, Sivco D L, et al. Short wavelength (-3.4m) quantum cascade laser based on strained compensated InGaAs/AlI[J]. Applied Physics Letters, 1998, 72(6):680-682.
[12] Evans A, Nguyen J, Slivken S, et al. Quantum-cascade lasers operating in continuous-wave mode above 90℃ at lambda similar to 5.25m[J]. Applied Physics Letters, 2006, 88(5):051105.
[13] Faist J, Capasso F, Sivco D L, et al. Quantum cascade laser[J]. Science, 1994, 264(5158):553-556.
[14] Bai Y, Slivken S, Kuboya S, et al. Quantum cascade lasers that emit more light than heat[J]. Nature Photonics, 2010, 4(2):99-102.
[15] Liu P Q, Hoffman A J, Escarra M D, et al. Highly power-efficient quantum cascade lasers[J]. Nature Photonics, 2010, 4(2):95-98.
[16] Bai Y, Bandyopadhyay N, Tsao S, et al. Room temperature quantum cascade lasers with 27% wall plug efficiency[J]. Applied Physics Letters, 2011, 98(18):181102.
[17] Bloom G, Larat C, Lallier E, et al. Coherent combining of two quantum-cascade lasers in a Michelson cavity[J]. Optics Letters, 2010, 35(11):1917-1919.
[18] Bloom G, Larat C, Lallier E, et al. Passive coherent beam combining of quantum-cascade lasers with a Dammann grating[J]. Optics Letters, 2011, 36(9):3810-3812.
[19] Huang R K, Chann B, Burgess J, et al. TeraDiode's high brightness semiconductor lasers[C]//SPIE, 2015, 9730:97300C.
[20] Fan T Y, Sanchez A, Daneu V, et al. Spectral beam combining of a broad-stripe diode laser array in an external cavity[J]. Optics Letters, 2000, 25(6):405-407.
[21] Vijayakumar D, Jensen O B, Thestrup B, et al. Wavelength beam combining of a 980 nm tapered diode laser bar in an external cavity[C]//SPIE, 2010, 7720:77201U.
[22] Huang R K, Missaggia L J, Chann B, et al. High-brightness wavelength beam combined semiconductor laser diode arrays[J]. IEEE Photonics Technology Letters, 2007, 19(4):209-211.
[23] Montoya J, Augst S J, Creedon K, et al. External cavity beam combining of 21 semiconductor lasers using SPGD[J]. Applied Optics, 2012, 51(11):1727-1728.
[24] Mller A, Vijayakumarole D, Jensen O, et al. Spectral beam combining of diode lasers with high efficiency[C]//Lasers, Sources, and Related Photonic Devices Technical Digest OSA, 2012:AM4A 10.
[25] Lee B G, Kansky J, Goyal A K, et al. Beam combining of quantum cascade laser arrays[J]. Optics Express, 2009, 17(18):16216-16224.
[26] Goyal A K, Spencer M, Shatrovoy O, et al. Dispersion-compensated wavelength beam combining of quantum-cascade-laser arrays[J]. Optics Express, 2011, 19(27):26725-26732.
[27] Hugger S, Fuchsa F, Aidama R, et al. Spectral beam combining of quantum cascade lasers in an external cavity[C]//SPIE, 2009, 7325:73250H.
[28] Bradshawa J L, Toberbjohn R L, Brunoa D, et al. Wavelength beam combined quantum cascade lasers for IRCM[C]//SPIE, 2009, 7325:73250K.
[29] Hugger S, Aidam R, Bronner W, et al. Power scaling of quantum cascade lasers via multiemitter beam combining[J]. Optics Express, 2010, 49(11):111111.
[30] Wagner J, Schulz N, Rsener B, et al. Infrared semiconductor lasers for DIRCM applications[C]//SPIE, 2008, 7115:71150A.
[31] Eldera I F, Thornea D H, Lamba A R, et al. Mid-IR laser source using hollow waveguide beam combining[C]//SPIE, 2016, 9726:972601.
[32] Wu H, Wang L J, Peng H Y, et al. High efficiency beam combination of 4.6m quantum cascade lasers[J]. Chinese Optics Letters, 2013, 11(9):091401.
[33] Wu H, Shu S L, Ning Y Q, et al. High-efficiency beam combination of continuous-wave quantum cascade lasers[J]. Chinese Journal of Lasers, 2015, 42(7):0702005. (in Chinese)
[34] Zhao Y, Zhang J C, Zhou Y H, et al. External-cavity beam combining of 4-channel quantum cascade lasers[J]. Infrared Physics Technology, 2017, 85:52-55.