Theory of the Linewidth of Semiconductor Lasers

IEEE Journal of Quantum Electronics

Volumn 18, Issue 2, 1982, Pages 259-264

  Henry, Charles H ^a  

^a LUCENT TECHNOLOGIES   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

LASERS, SEMICONDUCTOR;

EID: 0020090793     PISSN: 00189197     EISSN: 15581713     Source Type: Journal    
DOI: 10.1109/JQE.1982.1071522     Document Type: Article

References (15)

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2. H. Gerhardt, H. Welling, and A. Guttner, “Measurements of the laser linewidth due to quantum phase and quantum amplitude noise above and below threshold. I,” Z. Physik, vol. 253, p. 113, 1972.
3. M. Lax, “Classical noise V. Noise in selfsustained oscillators,” Phys. Rev.,-vol. 160, p. 290, 1967.
4. M. Lax, “Quantum noise X. Density-matrix treatment of field and population-difference fluctuations,” Phys. Rev., vol. 157, p. 213, 1967.
5. V.F. Elesin and V.V. Rusakov, “Theory of the natural width of a semiconductor laser emission line,” Sov. J. Quantum Electron., vol. 5, p. 1239, 1976.
6. M.W. Fleming and A. Mooradian, “Spectral characteristics of external-cavity controlled semiconductor lasers,” IEEE J. Quantum Electron., vol. QE-17, pp. 44-59, Jan. 1981.
7. J.P. van der Ziel, “Spectral broadening of pulsating AlxGa1-xAs double heterostructure lasers,” IEEE J. Quantum Electron., vol. QE-15, pp. 1277-1281, Dec. 1979.
8. B. Hakki, “Optical and microwave instabilities in injection lasers,” J. Appl. Phys., vol. 51, p. 68, 1980.
9. C.H. Henry, R.A. Logan, and K.A. Bertness, “Spectral dependence of the change in refractive index due to carrier injection in GaAs lasers,” J. Appl. Phys., vol. 52, pp. 4451-4461, 1981.
10. S.E.H. Turley, G.H.B. Thompson, and D.F. Lovelace, “Effect of injection current on the dielectric constant of an inbuilt waveguide in twin-transverse-junction stripe lasers,” Electron. Lett., vol. 15, p. 256, 1979.
11. H. Haug and H. Haken, Z. Physik, vol. 204, pp. 262-275, 1967.
12. L.D. Landau and E.M. Lifshitz, Electrodynamics of Continuous Media. Reading, MA: Addison-Wesley, 1960, sect. 63.
13. C.H. Henry, R.A. Logan, and F.R. Merritt, “Measurement of gain and absorption spectra in AlGaAs buried heterostructure lasers,” J. Appl. Phys., vol. 51, p. 3042, 1980.
14. C.H. Henry, R.A. Logan, and K.A. Bertness, “Measurement of spectrum, bias dependence and intensity of spontaneous emission in GaAs lasers,” J. Appl. Phys., vol. 52, pp. 4453-4456, 1981.
15. M. Lax, “Fluctuations from the nonequilibrium steady state,” Rev. Mod. Phys., vol. 32, p. 25, 1960. Repeater Spacing of 280 Mbit/s Singlemode Fiber-Optic Transmission System Using 1.55 μm Laser Diode Source SHU YAMAMOTO, HARUO SAKAGUCHI, and NORIO SEKI, member, ieee The authors are with KDD Research and Development Laboratories, Tokyo, Japan. Abstract-This paper describes an attainable repeater spacing for a high bit-rate singlemode fiber-optic transmission in the 1.55μm wavelength region where laser mode partition noise comes to be significant. An expression for evaluating mode partition noise is given as the form involving the influence of laser spectral fluctuations under high bit-rate modulation, together with the intersymbol interference and the equalized pulse shape in the optical receiver. After the validity of its numerical results is confirmed experimentally, the resulting evaluation of laser mode partition noise is connected to a systematic discussion on the attainable repeater spacing of a 280 Mbit/s fiber-optic transmission system operating at 1.55 μm, along with fiber loss versus dispersion tradeoffs. This discussion permits the attainable repeater spacing to be 60-70 km for the combination of a laser diode with 1.5-2.0 nm spectrum broadening and a fiber with the loss of 0.5 dB/km and the dispersion of 4-6 ps/km • nm.