摘要:
In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要:
In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要:
In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要:
In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要:
In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要:
A repeating apparatus disposed at an end point of each divisional repeating interval of a light transmission line performs a first dispersion compensation step, an optical add/drop multiplexing step and a second dispersion compensation step to perform repeating transmission. The ratio of an over compensation amount at the second dispersion compensation step to the sum of dispersion compensation amounts at the first and second dispersion compensation steps is set so as to gradually vary together with the transmission distance from the terminal apparatus for transmission at which the repeating apparatus is disposed on the light transmission line so that degradation of wavelengths to be received by the terminal apparatus for reception is suppressed while dispersion compensation is performed with a high degree of accuracy at each optical add/drop multiplexing point on the transmission line.
摘要:
A laser beam generated between a total reflector and an output coupler is turned back by plural reflectors which are mounted in a discharge region along two main electrodes at 45.degree., and the discharge region is divided into plural divided discharge regions, thus, a diameter of an output laser beam is reduced to a diameter of the divided discharge regions.
摘要:
A reflector for an excimer laser is composed of an aluminum layer deposited on a substrate and at least two pairs of dielectric multilayers of high refractive index material and low refractive index material alternately piled on the aluminum layer, and optical thickness of the respective layers of an outer pair of the dielectric multilayers are deviated from .lambda./4 and total optical thickness of the outer pair is made to be .lambda./2.
摘要:
An antireflection film composed of a layer of arsenic triselenide having an optical thickness in the range between 2.518 and 2.783 .mu.m, a layer of potassium chloride having an optical thickness in the range between 1.151 and 1.272 .mu.m and a layer of arsenic triselenide having an optical thickness in the range between 0.577 and 0.749 .mu.m which are successively formed on a member of infrared radiation transmitting material formed of a mixture of thalium iodide and thalium bromide. The member provided with the three-layer antireflection film is used in an atmosphere of protective gas, such as dry air or dry N.sub.2 gas.
摘要:
An antireflection coating for a potassium chloride substrate has a first arsenic trisulfide (As.sub.2 S.sub.3) layer, a lead fluoride (PbF.sub.2) layer and a second arsenic trisulfide (As.sub.2 S.sub.3) layer which are formed on at least one major surface of the potassium chloride (KCl) substrate in the order named. The antireflection coating withstands to irradiate of a high-power carbon dioxide gas laser. The antireflection coating also has good optical characteristics and moisture resistance.
摘要翻译:用于氯化钾底物的抗反射涂层具有在氯化钾(KCl)的至少一个主表面上形成的第一砷三氧化物(As 2 S 3)层,氟化铅(PbF 2)层和第二砷三硫化物(As 2 S 3) 底物按顺序命名。 抗反射涂层可承受大功率二氧化碳气体激光器的照射。 抗反射涂层也具有良好的光学特性和耐湿性。