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Effects of transverse anisotropy on VCSEL spectra

Effects of transverse anisotropy on VCSEL spectra

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High resolution spectral measurements on a commercial VCSEL array are reported. The authors observe frequency splittings that result from birefringence, typically 3–22 GHz, and from transverse anisotropy between differently oriented first-order modes, typically 3–17 GHz. The spectral splittings between the various transverse modes are found to be independent of polarisation.

Inspec keywords: laser cavity resonators; semiconductor laser arrays; laser modes; birefringence; surface emitting lasers

Other keywords: surface emitting laser; vertical cavity SEL; commercial VCSEL array; differently oriented first-order modes; frequency splittings; birefringence; VCSEL spectra; high resolution spectral measurements; 3 to 22 GHz; transverse anisotropy

Subjects: Lasing action in semiconductors; Laser beam characteristics and interactions; Laser resonators and cavities; Laser resonators and cavities; Semiconductor lasers; Laser beam interactions and properties

References

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      • T. Mukaihara , F. Koyama , K. Iga . Engineered polarization control of GaAs/AlGaAs surface-emitting lasersbyanisotropic stretch from elliptical etched substrate hole. IEEE Photonics Technol. Lett. , 133 - 135
    2. 2)
      • K.D. Choquette , R.E. Leibenguth . Control of vertical-cavity laser polarization with anisotropic transversecavity geometries. IEEE Photonics Technol. Lett. , 40 - 42
    3. 3)
      • Bandgap Technology Corporation, 325 Interlocken Parkway,Broomfield, CO 80021, USA.
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      • S.C. Rashleigh . Origins and control of polarization effects in single-mode fibers. J. Lightwave Technol. , 312 - 331
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      • K.D. Choquette , D.A. Richie , R.E. Leibenguth . Temperature dependence of gain-guided vertical-cavity surface emittinglaser polarization. Appl. Phys. Lett. , 2062 - 2064
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