Photonic crystal VCSELs with narrow spectral width and high bandwidth operating at low current density

• Published in: Electronics letters Vol. 49; no. 9; pp. 612 - 613
• Main Authors: Tan, M, Fryslie, S.T.M, Guenter, J.K, Tatum, J.A, Johnson, R.H, Choquette, K.D
• Format: Journal Article
• Language: English
• Published: Stevenage The Institution of Engineering and Technology 25.04.2013; Institution of Engineering and Technology
• Subjects: bandwidth 16.2 GHz; current apertures; current density; error‐free transmission; Exact sciences and technology; Fundamental areas of phenomenology (including applications); high‐reliability laser source; holey fibres; Lasers; long multimode fibre links; Microcavity and microdisk lasers; narrow spectral width; operating current density; optical apertures; optical links; Optical materials; Optics; Photonic bandgap materials; photonic crystal VCSEL; photonic crystals; Photonics; Physics; small signal modulation bandwidth; surface emitting lasers; vertical‐cavity surface‐emitting laser; bandwidth 16.2 GHz; optical links; surface emitting lasers; holey fibres; narrow spectral width; current density; long multimode fibre links; error-free transmission; photonic crystal VCSEL; current apertures; optical apertures; high-reliability laser source; operating current density; vertical-cavity surface-emitting laser; photonic crystals; small signal modulation bandwidth; GHz range; High-pass filters; Small signal; Microdisc lasers; Photonic crystals; Multimode waveguide; Vertical cavity laser; Semiconductor lasers; Surface emitting lasers; Bandwidth; Reliability; Multimode fiber; Current density; Data link; High rate transmission
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2013.0693

A photonic crystal vertical-cavity surface-emitting laser with a spectral width of 0.16 nm and a 3dB small signal modulation bandwidth of 16.2 GHz is demonstrated. Separation of optical and current apertures enables a narrow spectral width and an extremely low operating current density of ∼ 1 kA/cm2 simultaneously. It can potentially be used as a high-reliability laser source that enables error-free transmission over long multimode fibre links at high data rate.