Single-mode laser action in quantum cascade lasers with spiral-shaped chaotic resonators | Zendy

Ross M. Audet | Zendy; Mikhail A. Belkin | Zendy; Jonathan A. Fan | Zendy; Benjamin G. Lee | Zendy; Kai Lin | Zendy; Federico Capasso | Zendy; Evgenii E. Narimanov | Zendy; D. P. Bour | Zendy; S. Corzine | Zendy; Jintian Zhu | Zendy; G. E. Höfler | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Single-mode laser action in quantum cascade lasers with spiral-shaped chaotic resonators

Author(s) -

Ross M. Audet,

Mikhail A. Belkin,

Jonathan A. Fan,

Benjamin G. Lee,

Kai Lin,

Federico Capasso,

Evgenii E. Narimanov,

D. P. Bour,

S. Corzine,

Jintian Zhu,

G. E. Höfler

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2784290

Subject(s) - lasing threshold , laser , whispering gallery wave , cascade , resonator , optoelectronics , optics , spiral (railway) , materials science , subthreshold conduction , semiconductor laser theory , quantum dot laser , continuous wave , single mode optical fiber , physics , chemistry , mathematical analysis , mathematics , chromatography , transistor , voltage , quantum mechanics

The authors have fabricated and characterized quantum cascade lasers with spiral-shaped microresonators. The lasers operate in pulsed mode at room temperature with peak optical power greater than 20mW and in continuous wave at temperatures up to 125K. They exhibit single-mode emission in both pulsed mode and continuous wave operation, with a 30dB side-mode suppression ratio at injection currents well above threshold. Subthreshold spectral measurements indicate that the spiral cavities support whispering-gallery-like modes. Single-mode lasing occurs on one of these modes. Far-field profiles reveal enhanced directionality compared to microdisk lasers.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research