Direct measurement of coherent light proportion from a practical laser source
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866917566071439360 |
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| author | Yeo, Xi Jie Ernst, Eva Leow, Alvin Hwang, Jaesuk Shen, Lijiong Kurtsiefer, Christian Tan, Peng Kian |
| author_facet | Yeo, Xi Jie Ernst, Eva Leow, Alvin Hwang, Jaesuk Shen, Lijiong Kurtsiefer, Christian Tan, Peng Kian |
| contents | We present a technique to estimate the proportion of coherent emission in the light emitted by a practical laser source without spectral filtering. The technique is based on measuring interferometric photon correlations between the output ports of an asymmetric Mach-Zehnder interferometer. With this, we characterize the fraction of coherent emission in the light emitted by a laser diode when transiting through the lasing threshold. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_10377 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Direct measurement of coherent light proportion from a practical laser source Yeo, Xi Jie Ernst, Eva Leow, Alvin Hwang, Jaesuk Shen, Lijiong Kurtsiefer, Christian Tan, Peng Kian Quantum Physics We present a technique to estimate the proportion of coherent emission in the light emitted by a practical laser source without spectral filtering. The technique is based on measuring interferometric photon correlations between the output ports of an asymmetric Mach-Zehnder interferometer. With this, we characterize the fraction of coherent emission in the light emitted by a laser diode when transiting through the lasing threshold. |
| title | Direct measurement of coherent light proportion from a practical laser source |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2310.10377 |