Optical amplifiers are important elements of photonic integrated circuits. We present a hybrid silicon evanescent amplifier utilizing a wafer bonded structure of silicon waveguide and AlGaInAs quantum wells. A chip gain of 13 dB with a power penalty of 0.5 dB at 40 Gb/s data amplification is demonstrated. ©2006 Optical Society of America OCIS codes: (250.5980) Semiconductor optical amplifiers; ...

We report optical damage resistant nearstoichiometric Ti:Mg:Er:LiNbO3 single-mode strip waveguides fabricated on congruent LiNbO3 by Er diffusion, Mg/Ti codiffusion, and vapor-transport-equilibration process. The waveguide optical properties, compositions, crystalline phases and Mg, Er and Ti profiles were characterized, and stable signal enhancement has been measured with >200mW pump power. Ke...

Let X denote the number of items declared defective in a sample of size n selected without replacemant from a batch of N items containing B defectives, where testing is fallible. In this note it is shown that the density of X, p(x, B), has a monotone likelihood

Let A be the class of functions f(z) = z + ∑∞ n=2 anz n . . . , analytic in the open unit disc E. A certain integral operator is used to define some subclasses ofA and their inclusion properties are studied.

includes an excellent historical postscript. Almost 70 per cent of this book is devoted to the interface, which the authors realize is the problem area, that the body presents between the physiological event and the resulting electrical signal. The two final chapters are a well prepared introduction to amplifiers and the necessary criteria for faithful reproduction of electrical data discussed ...

Consider a variable A that can take a finite set of values {a1, . . . , am}. We can define a probability distribution for A by specifying a set of numbers {P (A = a1), . . . , P (A = am)}, where 0 ≤ P (A = ai) ≤ 1 and where ∑m i=1 P (A = ai). We can think ofA = ai as an event that either is or is not true, and P (A = ai) is the probability of this particular event being true. We can also think ...