Abstract
By combing Zn-diffusion and oxide-relief apertures with strong detuning (>20 nm) in our demonstrated short-cavity (λ/2) 850-nm vertical-cavity surface-emitting lasers (VCSELs), wide electrical-to-optical bandwidth (29-24 GHz), low-differential resistance (∼ 100Ω), and (quasi) single-mode (SM) with reasonable output power (∼ 1.4 mW) performances can be simultaneously achieved. Error-free ON-OFF keying transmission at 54-Gb/s data rate through 1-km OM4 multi-mode fiber can be achieved by using highly SM device with forward error correction and decision feedback equalization techniques. As compared with the reference device with a larger oxide-relief aperture and a multi-mode performance, the SM device exhibits lower bit-error rate (1 × 10-5 versus 1 × 10-2) at 54 Gb/s. This result indicates that modal dispersion plays more important role in transmission than that of output power does. We benchmark these results to an industrial 50-Gb/s SM VCSEL. It shows a higher bit-error-rate value ∼ 3.5 × 10-3 versus ∼ 1.4 × 10-4 under the same received optical power.
Original language | English |
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Article number | 7433955 |
Pages (from-to) | 1367-1370 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 28 |
Issue number | 12 |
DOIs | |
State | Published - 15 Jun 2016 |
Keywords
- Semiconductor lasers
- Vertical cavity surface emitting lasers