Femtosecond laser direct writing of single mode polymer micro ring laser with high stability and low pumping threshold

Gholam Mohammad Parsanasab; Mojtaba Moshkani; Alireza Gharavi

doi:10.1364/OE.23.008310

Femtosecond laser direct writing of single mode polymer micro ring laser with high stability and low pumping threshold

Gholam Mohammad Parsanasab, Mojtaba Moshkani, Alireza Gharavi

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

We have demonstrated an optically pumped polymer microring laser fabricated by two photon polymerization (TPP) of SU-8. The gain medium is an organic dye (Rhodamine B) doped in SU-8, and the laser cavity is a double coupled microring structure. Single mode lasing was obtained from the two coupled rings each with 30 μm and 29 μm radii using Vernier effect. Low laser threshold of 0.4 μJ/mm² is achieved using 1 μm wide polymer waveguides and the quality factor is greater than 10⁴ at 612.4 nm wavelength. The lasing remained stable with pump energies from threshold to energies as high as 125 times the threshold.

Original language	English
Pages (from-to)	8310-8316
Number of pages	7
Journal	Optics Express
Volume	23
Issue number	7
DOIs	https://doi.org/10.1364/OE.23.008310
Publication status	Published - 6 Apr 2015
Externally published	Yes

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abstract = "We have demonstrated an optically pumped polymer microring laser fabricated by two photon polymerization (TPP) of SU-8. The gain medium is an organic dye (Rhodamine B) doped in SU-8, and the laser cavity is a double coupled microring structure. Single mode lasing was obtained from the two coupled rings each with 30 μm and 29 μm radii using Vernier effect. Low laser threshold of 0.4 μJ/mm2 is achieved using 1 μm wide polymer waveguides and the quality factor is greater than 104 at 612.4 nm wavelength. The lasing remained stable with pump energies from threshold to energies as high as 125 times the threshold.",

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AU - Parsanasab, Gholam Mohammad

AU - Moshkani, Mojtaba

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PY - 2015/4/6

Y1 - 2015/4/6

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AB - We have demonstrated an optically pumped polymer microring laser fabricated by two photon polymerization (TPP) of SU-8. The gain medium is an organic dye (Rhodamine B) doped in SU-8, and the laser cavity is a double coupled microring structure. Single mode lasing was obtained from the two coupled rings each with 30 μm and 29 μm radii using Vernier effect. Low laser threshold of 0.4 μJ/mm2 is achieved using 1 μm wide polymer waveguides and the quality factor is greater than 104 at 612.4 nm wavelength. The lasing remained stable with pump energies from threshold to energies as high as 125 times the threshold.

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Femtosecond laser direct writing of single mode polymer micro ring laser with high stability and low pumping threshold

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