Optical wavelength conversion over 18 nm at 2.5 Gb/s by DBR-laser

Durhuus, T.; Pedersen, R.J.S.; Mikkelsen, B.; Stubkjaer, K.E.; Öberg, M.; Nilsson, S.

doi:10.1109/68.185069

Cited by 40 publications

(4 citation statements)

References 3 publications

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“…The demonstrated system used FWM in HNLF for this copying function, however techniques employing SOAs [9] or gain saturation of DBR lasers [10] could also be considered.…”

Section: Discussionmentioning

confidence: 99%

Remoted all optical instantaneous frequency measurement system using nonlinear mixing in highly nonlinear optical fiber

Bui

Mitchell

2013

Opt. Express

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A novel remoted instantaneous frequency measurement system using all optical mixing is demonstrated. This system copies an input intensity modulated optical carrier using four wave mixing, delays this copy and then mixes it with the original signal, to produce an output idler tone. The intensity of this output can be used to determine the RF frequency of the input signal. This system is inherently broadband and can be easily scaled beyond 40 GHz while maintaining a DC output which greatly simplifies receiving electronics. The remoted configuration isolates the sensitive and expensive receiver hardware from the signal sources and importantly allows the system to be added to existing microwave photonic implementations without modification of the transmission module.

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“…The demonstrated system used FWM in HNLF for this copying function, however techniques employing SOAs [9] or gain saturation of DBR lasers [10] could also be considered.…”

Section: Discussionmentioning

confidence: 99%

Remoted all optical instantaneous frequency measurement system using nonlinear mixing in highly nonlinear optical fiber

Bui

Mitchell

2013

Opt. Express

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“…All-to-one Because of its importance, we now discuss permutation wavelength changing devices have been demonstrated, but routing. Recall that permutation routing was defined as currently their use is limited to signals using amplitude the set of all complete matchings of transmitters and re-modulation [11,12,13]. The device in Fig.…”

Section: This Is a Contradiction F'(t S) > (1 + E)mentioning

confidence: 99%

On the number of wavelengths and switches in all-optical networks

Barry

Humblet

1994

IEEE Trans. Commun.

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Abstract-We consider optical networks using wave-a signal launched from a transmitter may arrive at a valength division multiplexing, where the path a signal riety of receivers on many different wavelengths and/or takes is determined by the network switches, the wavearrive at a receiver on several different wavelengths. length of the signal, and the location the signal originated. Therefore, a signal is routed through a combination of circuit switching and wavelength routing (asthe number of available wavelengths, 1 it will be necessary signing it a wavelength). We present a bound on the to simultaneously assign many transmitters the same waveminimum number of wavelengths needed based on the length. Since two signals using the same wavelength canconnectivity requirements of the users and the number not travel over the same fiber simultaneously, collisions of switching states. In addition, we present a lower bound on the number of switching states in a network using a combination of circuit switching, wavelength must insure that signals do not collide at any intended rerouting, and frequency changing. The bounds hold for ceiver. That is, if receiver m is listening to wavelength A all networks with switches, wavelength routing, and at time t, we must insure that only one signal assigned to wavelength changing devices.Several examples are A at time t arrives at receiver m. If two or more arrive, we presented including a network with near optimal wavelength re-use. say there is contention. In this paper we present bounds, some of which are shown to be tight, on the number of wavelengths required under various user connectivity re-I. INTRODUCTION quirements. The lower bounds allow the possibility of re-We consider all-optical networks (AONs) using wavearranging the wavelengths assigned to active sessions to length division multiplexing, circuit switching and waveaccommodate new session requests. None of the construclength routing (A-routing for short). An advantage of A-tions require rearranging. routing is spatial re-use of wavelengths. We show thatIn section II, we formalize the network model and user there is a limit to the possible amount of wavelength reconnectivity requirements.In section III, we analyze two use.special types of passive A-routing networks. We show that In a A-routing network, the path a signal takes is a funcfor these special cases, the number of wavelengths must be tion of the the wavelength of the signal and the location on the order of the number of active sessions for a broad of the signal transmitter. If the signal paths are under class of user connectivity requirements. control of the network, e.g. through the use of switches We then relax the wavelength routing restrictions used or dynamic wavelength routing devices, we say that the in section III and consider A-routing networks with arnetwork is configurable. Otherwise we say the network is bitrary topology, wavelength changers, and switches. A passive or fixed. In a configurable network, the wavelength lower bound on the number of wave...

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“…Wavelength conversion techniques include cross-gain modulation (XGM) or cross-phase modulation (XPM) in semi conductor optical amplifiers (SOA) [1]- [6], four-wave mixing (FWM) in passive waveguides [7], SOAs [8], or semiconductor lasers [9], gain-suppression mechanism in the semiconductor lasers such as DBR lasers [10], [11] and T-Gate lasers [13], laser-based wavelength conversion [14], [15], and difference frequency generation (DFG) [16].…”

Section: Introductionmentioning

confidence: 99%

Theory and experiment of high-speed cross-gain modulation in semiconductor lasers

Jin

Keating

Chuang

2000

IEEE J. Quantum Electron.

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Abstract-We present theory and experiment for the high-speed modulation response of a quantum-well (QW) laser in the pres ence of an external microwave modulated optical pump in the gain region. The model includes the effects of pump-induced stimulated recombination and cross-gain saturation. Expressions for the small-signal modulation response of the test laser under gain modulation are derived. We also present experimental results using a multiple-QW InGaAlAs Fabry-Perot (FP) laser at 1.552 m as the test laser and an external pump by a 1.542 m DFB laser. Comparison between electrical modulation and optical cross-gain modulation (XGM) of the test laser is also presented, which shows improvement of the modulation bandwidth by optical XGM. Our data show a reduction of carrier lifetime with increasing optical pumping, a shift of the test-laser threshold current, a change in the K factor, and a variation of the relaxation frequency with different pump powers. The experimental results agree very well with the theoretical results.

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Optical wavelength conversion over 18 nm at 2.5 Gb/s by DBR-laser

Cited by 40 publications

References 3 publications

Remoted all optical instantaneous frequency measurement system using nonlinear mixing in highly nonlinear optical fiber

Remoted all optical instantaneous frequency measurement system using nonlinear mixing in highly nonlinear optical fiber

On the number of wavelengths and switches in all-optical networks

Theory and experiment of high-speed cross-gain modulation in semiconductor lasers

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