Modal noise reduction of laser diodes with specific thickness coating |
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| Authors: | Nawata K Tomita S Wakita K |
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| Affiliation: | NTT Atsugi Electrical Communication Laboratory, Atsugi, Japan; |
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| Abstract: | A low facet reflectivity laser diode is able to oscillate in multilongitudinal modes, and has a high relative intensity noise (RIN) and reduces mode hopping noise. By introducing the electron-cyclotron-resonance (ECR) plasma deposition method, a good facet coating film has been obtained. We have demonstrated that a specific coated laser has very low modal noise characteristics even under direct analogue intensity modulation. |
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