Modulated Grating Y-Structure Tunable Laser for $\lambda$ -Routed Networks and Optical Access

A fast tunable laser based on a modulated grating Y-structure (MG-Y) is demonstrated in direct burst-mode modulation at 2.5 Gb/s. Two transmission scenarios have been evaluated, and a characterization of its wavelength tuning performances in terms of wavelength switching rate and interference has been carried out. The minimum wavelength switching time was found to be 400 ps, and an optical loss budget of 26.7 dB is compatible for the use in optical transmission networks, covering distances up to 50 km while transmitting bursts at alternating wavelengths. Finally, an application in passive optical access networks allowing direct communication between the user terminals without traffic aggregation, and more important, without electrical-optical-electrical conversion or protocol-dependent termination at the premises of the service operator is presented. First results show its feasibility in hybrid wavelength division multiplexing/time division multiplexing networks that give service up to 64 users per tree.

[1]  L. D. Westbrook.  Dispersion of linewidth-broadening factor in 1.5 μm laser diodes , 1985 .

[2]  L. Gillner,et al.  Modulation properties of a near travelling-wave semiconductor laser amplifier , 1992 .

[3]  F. Devaux,et al.  Simple measurement of fiber dispersion and of chirp parameter of intensity modulated light emitter , 1993 .

[4]  J. L. Zyskind,et al.  Average inversion level, modeling, and physics of erbium-doped fiber amplifiers , 1997 .

[5]  S. Hammerfeldt,et al.  Design of a widely tunable modulated grating Y-branch laser using the additive Vernier effect for improved super-mode selection , 2002, IEEE 18th International Semiconductor Laser Conference.

[6]  Hwa-Yaw Tam,et al.  Optical automatic gain control of EDFA using two oscillating lasers in a single feedback loop , 2003 .

[7]  K. Motoshima,et al.  Forward error correction based on block turbo code with 3-bit soft decision for 10-Gb/s optical communication systems , 2004, IEEE Journal of Selected Topics in Quantum Electronics.

[8]  J.-O. Wesstrom,et al.  State-of-the-art performance of widely tunable modulated grating Y-branch lasers , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[9]  S. Chandrasekhar,et al.  10-Gb/s RZ-DPSK transmitter using a saturated SOA as a power booster and limiting amplifier , 2004, IEEE Photonics Technology Letters.

[10]  M. Amann,et al.  Tunable Laser Diodes and Related Optical Sources , 2005 .

[11]  J. Prat,et al.  Hybrid WDM/TDM PON using the AWG FSR and featuring centralized light generation and dynamic bandwidth allocation , 2005, Journal of Lightwave Technology.

[12]  R. Schatz,et al.  High-speed direct Modulation of widely tunable MG-Y laser , 2005, IEEE Photonics Technology Letters.

[13]  Leonid G. Kazovsky,et al.  Next Generation Optical Access Networks , 2006 .

[14]  Carlos Bock,et al.  Remotely amplified combined ring-tree dense access network architecture using reflective RSOA-based ONU , 2007 .

[15]  Marcel Hoekman,et al.  Densely integrated microring resonator based photonic devices for use in access networks. , 2007, Optics express.

[16]  P. Chanclou,et al.  Demonstration of RSOA-based remote modulation at 2.5 and 5 Gbit/s for WDM PON , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[17]  Martin Reisslein,et al.  STARGATE: the next evolutionary step toward unleashing the potential of WDM EPONs [Topics in Optical Communications] , 2007, IEEE Communications Magazine.

[18]  Jayant Baliga,et al.  Energy Consumption in Access Networks , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[19]  J. Bauwelinck,et al.  OSNR Penalty Imposed by Linear In-Band Crosstalk Caused by Interburst Residual Power in Multipoint-To-Point Networks , 2008, IEEE Photonics Technology Letters.

[20]  P. D. Townsend,et al.  Upstream burst-mode operation of a 100km reach, 16 × 512 split hybrid DWDM-TDM PON using tuneable external cavity lasers at the ONU-side , 2009, 2009 35th European Conference on Optical Communication.

[21]  P. Chanclou,et al.  Remotely pumped Erbium Doped Fibre bidirectional Amplifier for gain transient mitigation , 2009, 2009 11th International Conference on Transparent Optical Networks.

[22]  J. Prat,et al.  Direct 10-Gb/s Modulation of a Single-Section RSOA in PONs With High Optical Budget , 2010, IEEE Photonics Technology Letters.

[23]  J. Prat,et al.  Remotely Pumped Long-Reach Hybrid PON With Wavelength Reuse in RSOA-Based ONUs , 2011, Journal of Lightwave Technology.