Wavelength-tolerant optical access architectures featuring N-dimensional addressing and cascaded arrayed waveguide gratings

Design and cost performance of WDM PONs for multi-wavelength users

“…Most significantly this work represents a generalization of the special case: one wavelength per ONU. Another essential difference is the usage of theoretically any number of stages compared with other publications such as [Parker98] (see chapter 4).…”

Monolithic multiband wavelength router for fast reconfigurable data networking

“…However electronically programmable routing is required for nanosecond timescale reconfigurability in low-latency data networking [3]. Electronically controlled phase delays have been proposed and demonstrated [3,4], but the analogue control in combination with precalibrated look-up tables can be cumbersome, and the available end-to-end bandwidth can be artificially constrained. In this work we propose binary control with a losscompensating amplifier gate array integrated in combination with a multiband cyclic arrayed waveguide router.…”

“…Nanosecond time-scale, wavelength-tunable, optical filters offer an important enabler for a wavelength agile networking in metropolitan area telecommunications [1], interconnection systems [2] and access provisioning [3]. Increased data rate and connectivity requirements in combination with stringent cost and energy constraints have lead to a renewed effort to develop such integrated photonic sub-systems.…”

Monolithic Multiband Nanosecond Programmable Wavelength Router

“…There is an increasing need for fast-programmable, wavelength-division-multiplexed (WDM) optical links in telecommunications backbones [1], interconnection systems [2], and access networking [3]. Increasingly complex and power efficient circuits operating at higher data rates have lead to a renewed effort to develop integrated optoelectronic sub-systems.…”

“…Integrated circuits for multiwavelength links have been proposed using Bragg grating filters [4], [5], ring resonators [6], [7], and arrayed waveguide gratings [1]- [3], [8], [9]. Circuit-level implementation with gratings and ring resonators is frustrated by the tight fabrication tolerances and intrinsically low number of output ports.…”