| Citation: | JIN Hao-shu, LIU hui, XU Si-yuan, LU Bao-le, BAI Jin-tao. Polarization-multiplexing of a laser based on a bulk Yb:CALGO crystal[J].Chinese Optics.doi:10.37188/CO.EN-2023-0005
|
The polarization-multiplexing of a laser based on a medium with a large gain bandwidth and a high thermal conductivity can benefit dual-frequency and dual-comb lasers’ spectral bandwidth and power. This paper presents a demonstration of the polarization-multiplexing of a laser based on a bulk Yb:CALGO crystal. The polarization multiplexing is realized by sandwiching the gain crystal with two birefringent crystals which are cut at 45˚ to their optical axis. This sandwich-configuration creates inside the cavity two orthogonally polarized beams which are spatially separated only in the sandwich-configuration part but collinear in other part. Meanwhile, a single pump beam is also split into two beams automatically, matching the two cavity modes. This configuration also allows the gain crystal to be located in at the waist of cavity modes, which benefits the pumping efficiency. The laser outputs watt-level power with a slope efficiency exceeding 30%. A dual-frequency operation with terahertz frequency separation is realized by inserting an etalon into the cavity.
| [1] |
BAILI G, MORVAN L, ALOUINI M,
et al. Experimental demonstration of a tunable dual-frequency semiconductor laser free of relaxation oscillations[J].
Optics Letters, 2009, 34(21): 3421-3423.
doi:10.1364/OL.34.003421
|
| [2] |
PILLET G, MORVAN L, BRUNEL M,
et al. Dual-frequency laser at 1.5
µm for optical distribution and generation of high-purity microwave signals[J].
Journal of Lightwave Technology, 2008, 26(15): 2764-2773.
doi:10.1109/JLT.2008.927209
|
| [3] |
PAQUET R, BLIN S, MYARA M,
et al. Coherent continuous-wave dual-frequency high-Q external-cavity semiconductor laser for GHz-THz applications[J].
Optics Letters, 2016, 41(16): 3751-3754.
doi:10.1364/OL.41.003751
|
| [4] |
PUPEIKIS J, WILLENBERG B, CAMENZIND S L,
et al. Spatially multiplexed single-cavity dual-comb laser[J].
Optica, 2022, 9(7): 713-716.
doi:10.1364/OPTICA.457787
|
| [5] |
WILLENBERG B, PUPEIKIS J, KRÜGER L M,
et al. Femtosecond dual-comb Yb: CaF
2laser from a single free-running polarization-multiplexed cavity for optical sampling applications[J].
Optics Express, 2020, 28(20): 30275-30288.
doi:10.1364/OE.403072
|
| [6] |
LIAO R Y, TIAN H C, LIU W,
et al. Dual-comb generation from a single laser source: principles and spectroscopic applications towards mid-IR—A review[J].
Journal of Physics:
Photonics, 2020, 2(4): 042006.
doi:10.1088/2515-7647/aba66e
|
| [7] |
DUMONT P, CAMARGO F, DANET J M,
et al. Low-noise dual-frequency laser for compact cs atomic clocks[J].
Journal of Lightwave Technology, 2014, 32(20): 3817-3823.
doi:10.1109/JLT.2014.2318179
|
| [8] |
SCHELLER M, YARBOROUGH J M, MOLONEY J V,
et al. Room temperature continuous wave milliwatt terahertz source[J].
Optics Express, 2010, 18(26): 27112-27117.
doi:10.1364/OE.18.027112
|
| [9] |
CODDINGTON I, NEWBURY N, SWANN W. Dual-comb spectroscopy[J].
Optica, 2016, 3(4),doi:
10.1364/optica.3.000414.
|
| [10] |
SUH M G, VAHALA K J. Soliton microcomb range measurement[J].
Science, 2018, 359(6378): 884-887.
doi:10.1126/science.aao1968
|
| [11] |
ZHANG P, MAO L, ZHANG X J,
et al. Compact dual-wavelength vertical-external-cavity surface-emitting laser with simple elements[J].
Optics Express, 2021, 29(11): 16572-16583.
doi:10.1364/OE.423074
|
| [12] |
MANJOORAN S, LOIKO P, MAJOR A. A discretely tunable dual-wavelength multi-watt Yb: CALGO laser[J].
Applied Physics B, 2018, 124(1): 13.
doi:10.1007/s00340-017-6873-x
|
| [13] |
SCHELLER M, BAKER C W, KOCH S W,
et al. High power dual-wavelength VECSEL based on a multiple folded cavity[J].
IEEE Photonics Technology Letters, 2017, 29(10): 790-793.
doi:10.1109/LPT.2017.2685595
|
| [14] |
GREDAT G, LIU H, COTXET J,
et al. Optimization of laser dynamics for active stabilization of DF-VECSELs dedicated to cesium CPT clocks[J].
Journal of the Optical Society of America B, 2020, 37(4): 1196-1207.
doi:10.1364/JOSAB.389310
|
| [15] |
LINK S M, MAAS D J H C, WALDBURGER D,
et al. Dual-comb spectroscopy of water vapor with a free-running semiconductor disk laser[J].
Science, 2017, 356(6343): 1164-1168.
doi:10.1126/science.aam7424
|
| [16] |
KOWALCZYK M, STERCZEWSKI Ł, ZHANG X ZH,
et al. Dual-comb femtosecond solid-state laser with inherent polarization-multiplexing[J].
Laser&
Photonics Reviews, 2021, 15(8): 2000441.
|
| [17] |
MANJOORAN S, MAJOR A. Diode-pumped 45 fs Yb: CALGO laser oscillator with 1.7 MW of peak power[J].
Optics Letters, 2018, 43(10): 2324-2327.
doi:10.1364/OL.43.002324
|
| [18] |
HAKOBYAN S, WITTWER V J, BROCHARD P,
et al. Full stabilization and characterization of an optical frequency comb from a diode-pumped solid-state laser with GHz repetition rate[J].
Optics Express, 2017, 25(17): 20437-20453.
doi:10.1364/OE.25.020437
|
| [19] |
KLENNER A, GOLLING M, KELLER U. High peak power gigahertz Yb: CALGO laser[J].
Optics Express, 2014, 22(10): 11884-11891.
doi:10.1364/OE.22.011884
|
| [20] |
PETIT J, GOLDNER P, VIANA B. Laser emission with low quantum defect in Yb: CaGdAlO
4[J].
Optics Letters, 2005, 30(11): 1345-1347.
doi:10.1364/OL.30.001345
|
| [21] |
MODSCHING N, PARADIS C, LABAYE F,
et al. Kerr lens mode-locked Yb: CALGO thin-disk laser[J].
Optics Letters, 2018, 43(4): 879-882.
doi:10.1364/OL.43.000879
|
Figures(4)
DownLoad:
