Wavelength multiplexed

Zalvidea, D., Diez, A., Cruz, J.L. and Andres, M.V., A wavelength multiplexed hydrogen sensor based on a palladium-coated fibre taper and a Bragg grating, Electron, 40, 301, 2004. 

Noto, M. Vollmer, F. Keng, D. Teraoka, I. Arnold, S., Nanolayer characterization through wavelength multiplexing of microsphere resonator, Opt. Lett. 2005, 30, 510 512... 

Spiropyrans show promise for optical recording, three-dimensional optical memories,214 and holography.215 The dyes currently under study for these applications very probably will not be used merely dissolved in a bulk polymer matrix, but will be oriented in films and membranes, or adsorbed or vapor deposited on solid substrates to take advantage of the nonlinear optical properties of the colored forms. For example, thick (0.5 mm) PMMA films of 6-nitro-thiaBIPS can be used to record wavelength-multiplexed volume holograms with an infrared diode laser. This system is impractical at present because of fatigue and poor diffraction efficiencies.216... 

Spirobenzopyran derivatives were used as media of wavelength-multiplexed memory. A narrow absorption spectrum is required for the wavelength multiplex. The narrow spectrum was obtained by using J-aggregates of spirobenzopyrans. The J-aggregates have an absorption peak width of a few dozen nanometers. A five-wavelengths-multiplexed memory was demonstrated, but considerably large crosstalk between multiplexed channels was observed. ... 

Sappey, A. D. "Wavelength-Multiplexed Diode Laser Spectroscopy for Closed Loop Combustion Control and Optimization." Paperpresented atthe American-Japanese Flame Research Committees International Symposium, Waikaloa, HI, 2007. 

Picosecond diode lasers are by far the most economic light sources for DOT. Fibre lasers [223] and Ti Sapphire lasers [222, 443] have been used as well. These lasers have high power and short pulse width, but a high price. Wavelength multiplexing can be achieved only by synchronising several lasers and at a pulse-by-pulse basis. 

Of course, a TCSPC system works effieiently only with a high-repetition-rate excitation source. Diode lasers ean be built with any repetition rate up to about 100 MHz and are available with 375 nm, 405 nm, 440 nm, and 473 nm emission wavelength. Diode lasers are cost-effieient and ean be multiplexed at ps rates see Excitation Wavelength Multiplexing, page 87. For shorter wavelengths, frequency-doubled or frequency-tripled titanium-sapphire or neodymium-YAG lasers can be used. 

Tervonen A., Poyhonen P., Honkanen S., Tahkokorpi M., A guided-wave Mach-Zehnder interferometer structure for wavelength multiplexing, IEEE Photonics Technol. Lett. 3... 

Rakuljic, G. A., Leyva, V., Yariv, A. (1992). Optical data storage by using orthogonal wavelength-multiplexed volume holograms. Optics Letters, Vol. 17, pp. 1471-1473, 1992... 

There is a wide variety of microoptic components used in lightwave communication systems. The simplest system consists of a light source such as a laser diode, an optical fiber, and a detector at the receiving end, as shown in Fig. 19. The component employed is said to focus the laser light into the fiber. The wavelength multiplexing (WDM) system needs a more sophisticated combination of devices. At the output end, the MX combines multiple wave-... 

Rottmann, F., Neyer, A., Mevenkamp, W., and Voges, E., Integrated-optic wavelength multiplexers on lithium niobate based on two-mode interference, J. Lightwave Tech-nol, 6, 946 (1988). 

Zalvidea D, Dfez A, Cruz JL, Andres MV (2004) Wavelength multiplexed hydrogen sensor based on paUadinm-coated fibre-taper and Bragg grating. Electron Lett 40(5) 301-302... 

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