Consider an AlGaAs based hetero-structure laser diode having a cavity length of 150μm. The peak emission wavelength is 850 nm when the refractive index of the crystal is 3.7. a) Determine the mode integer and the wavelength separation between the modes? b) If the optical gain vs wavelength characteristic has a full width half maximum width of 6 nm, how many modes will be there in the given bandwidth? c) If the optical cavity of the laser is formed with cleaved reflectivity of each cleaved laser facet is 45 % and the loss is 10 cm-1 . Calculate the minimum required gain for lasing.
Consider an AlGaAs based hetero-structure laser diode having a cavity length of 150μm. The peak emission wavelength is 850 nm when the refractive index of the crystal is 3.7. a) Determine the mode integer and the wavelength separation between the modes? b) If the optical gain vs wavelength characteristic has a full width half maximum width of 6 nm, how many modes will be there in the given bandwidth? c) If the optical cavity of the laser is formed with cleaved reflectivity of each cleaved laser facet is 45 % and the loss is 10 cm-1 . Calculate the minimum required gain for lasing.
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ISBN:9780133923605
Author:Robert L. Boylestad
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Consider an AlGaAs based hetero-structure laser diode having a cavity length of 150μm. The peak emission wavelength is 850 nm when the refractive index of the crystal is 3.7. a) Determine the mode integer and the wavelength separation between the modes? b) If the optical gain vs wavelength characteristic has a full width half maximum width of 6 nm, how many modes will be there in the given bandwidth? c) If the optical cavity of the laser is formed with cleaved reflectivity of each cleaved laser facet is 45 % and the loss is 10 cm-1 . Calculate the minimum required gain for lasing.
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