It is a resonant cavity formed by two parallel reflecting mirrors separated by a mirror separated by a medium such as air or gas

Related MCQs

• Conventional cleaved mirror structures are difficult to fabricate with the cavity lengths below
• An injection laser has active cavity losses of 25 cm-1and the reflectivity of each laser facet is 30%. Determine the laser gain coefficient for the cavity it has a length of 500μm.
• In a DH laser, the sides of cavity are formed by _______________
• A GaAs injection laser with an optical cavity has refractive index of 3.6. Calculate the reflectivity for normal incidence of the plane wave on the GaAs-air interface.
• When a ray of light enters one medium from another medium, which quality will not change
• The ratio of speed of light in air to the speed of light in another medium is called as_________
• _________ is the stimulation of oxide formation by means of non-isothermal plasma maintained at low pressure in a microwave cavity surrounding the tube.
• The lasing output of the basic Fabry-perot cavity fiber is restricted to between ____________
• A GaAs injection laser has a threshold current density of 2.5*103Acm-2and length and width of the cavity is 240μmand 110μm respectively. Find the threshold current for the device.
•  __________________ may be improved through the use of frequency-selective feedback so that the cavity loss is different for various longitudinal modes.