The refractive index of the cladding of an optical fiber is… The refractive index of the cladding of an optical fiber is higher than that of the core, so that light can be confined and propagate along the core. Read Details
When the wavelength of a laser is smaller than the single-mo… When the wavelength of a laser is smaller than the single-mode cut-off wavelength of a fiber, the propagation of the laser in the fiber may become multimode. Read Details
To select a material as a laser gain medium, a two-level sys… To select a material as a laser gain medium, a two-level system is preferred, because it can be easily obtained. Read Details
A light going through an optical waveguide can be viewed as… A light going through an optical waveguide can be viewed as that field patterns are formed across the waveguide due to standing waves and the field patterns propagate alone the waveguide. Read Details
45. It is extremely rare for people to recall events that o… 45. It is extremely rare for people to recall events that occurred before the age of ______. Read Details
38. What we are thinking of at any given moment, or what we… 38. What we are thinking of at any given moment, or what we commonly know as “consciousness,” is ______. Read Details
23. Our awareness of various mental processes such as makin… 23. Our awareness of various mental processes such as making decisions, daydreaming, reflecting, and concentrating is called ______. Read Details
31. The process by which experience or practice results in… 31. The process by which experience or practice results in a relatively permanent change in behavior or potential behavior is known as ______. Read Details
