A Tm3+ sensitized Ho3+ silica fibre laser at 2.04 μm pumped at 809 nm

Ghisler, Ch.; Lüthy, W.; Weber, H. P.; Morel, Jacques; Woodtli, A.; Dändliker, R.; Neuman, V.; Berthou, H.; Kotrotsios, G.

doi:10.1016/0030-4018(94)90693-9

Cited by 26 publications

(2 citation statements)

References 4 publications

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“…The codoping with Ho 3 allows for energy transfer from the Tm 3 3 H 4 to the Ho 3 5 I 7 state. Lasing on the 5 I 7 − 5 I 8 transition of Ho 3 [13,14] at wavelengths longer than 2 μm can occur, thus increasing the laser's spectral bandwidth. In general, it is believed that the greater Tm:Ho ratios will ensure that enough Ho 3 ions will be sufficiently excited to exceed the transparency level of the laser transition for a given launched power and consequently lead to lower thresholds [15].…”

Section: Mode-locked Thulium/holmium Fiber Laser Designmentioning

confidence: 99%

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

Kadel

Washburn

2012

Appl. Opt.

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We have demonstrated a self-starting, passively mode-locked Tm/Ho codoped fiber laser that lases at one of two center wavelengths. An amplified 1.56 μm distributed feedback laser pumps a ring laser cavity which contains 1 m of Tm/Ho codoped silica fiber. Mode locking is obtained via nonlinear polarization rotation using a c-band polarization sensitive isolator with two polarization controllers. The laser is able to pulse separately at either 1.97 or 2.04 μm by altering the intracavity polarization during the initiation of mode locking. The codoped fiber permits pulsing at one of two wavelengths, where the shorter is due to the Tm(3+) emission and the longer due to the Ho(3+) emission. The laser produces a stable pulse train at 28.4 MHz with 25 mW average power, and a pulse duration of 966 fs with 9 nm bandwidth.

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Section: Mode-locked Thulium/holmium Fiber Laser Designmentioning

confidence: 99%

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

Kadel

Washburn

2012

Appl. Opt.

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“…The principle is relatively simple and the configuration is robust. With the maturity of high-efficiency semiconductor laser sources in recent years, many researchers have tried to use the laser diode (LD) to obtain lasers below 3 μm with the direct pump technology [12,13]. Few approaches for LD-pumped lasers in the region of 3-5 μm have been reported until now.…”

Section: Introductionmentioning

confidence: 99%

A 3.9 µm Ho ³⁺ :BaY ₂ F ₈ laser directly pumped by laser diodes

Ma¹,

Zhang²,

Guo³

et al. 2021

Electronics Letters

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This study reports a mid-infrared Ho 3+ :BaY 2 F 8 laser directly pumped by laser diodes (LDs). A finite element method (FEM) was used to calculate the temperature and thermal stress distributions inside the Ho 3+ :BYF crystal. The damage conditions have been evaluated on the basis of the experimental results. Using 889 nm LDs with the repetition frequency and pulse duration of 13 Hz and 100 μs, respectively, an output pulse energy of 1.05 mJ at 3.9 μm for the pump pulse energy of 336.8 mJ was achieved. The study might be useful for constructing a compact and robust mid-infrared laser.

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Tellurite glass lasers operating close to 2μm

et al. 2010

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Recent work in the area of Tm 3+ and Ho 3+ -doped tellurite fibre and bulk glass lasers operating close to 2 μm is reviewed. Spectroscopic properties of these doped glasses are discussed as well as the relevant pump schemes and energy transfer processes involved. Results of continuous wave (CW) and Q-switched Tm 3+ and Ho 3+ -doped tellurite fibre lasers are then presented and discussed. Finally, the results of tellurite bulk glass laser experiments conducted to date are reported.dX: 6.65 ms X: −12.4 ms Ch1: 500 mV 2.5 msThe oscillation of the Q-switched pulse train for a 79 cm long Tm 3+ /Ho 3+ /Yb 3+ -codoped tellurite fibre

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A Tm3+ sensitized Ho3+ silica fibre laser at 2.04 μm pumped at 809 nm

Cited by 26 publications

References 4 publications

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

A 3.9 µm Ho ³⁺ :BaY ₂ F ₈ laser directly pumped by laser diodes

Tellurite glass lasers operating close to 2μm

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A Tm3+ sensitized Ho3+ silica fibre laser at 2.04 μm pumped at 809 nm

Cited by 26 publications

References 4 publications

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

All-fiber passively mode-locked thulium/holmium laser with two center wavelengths

A 3.9 µm Ho 3+ :BaY 2 F 8 laser directly pumped by laser diodes

Tellurite glass lasers operating close to 2μm

Contact Info

Product

Resources

About

A 3.9 µm Ho ³⁺ :BaY ₂ F ₈ laser directly pumped by laser diodes