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Optical Fiber Communications 4th Edition by Gerd Keiser
Edition 4ISBN: 978-0073380711Optical Fiber Communications 4th Edition by Gerd Keiser
Edition 4ISBN: 978-0073380711 Exercise 5
The derivation of Eq. (4.46) assumes that the refractive index n is independent of wavelength.
(a) Show that when n depends on , we have
( b ) If the group refractive index ( n dn/d ) is 4.5 for GaAs at 850 nm, what is the mode spacing for a 400 -µ m-long laser.
(a) Show that when n depends on , we have
( b ) If the group refractive index ( n dn/d ) is 4.5 for GaAs at 850 nm, what is the mode spacing for a 400 -µ m-long laser.
Explanation
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(a)
Refer to equation 4.46 from the text...
Optical Fiber Communications 4th Edition by Gerd Keiser
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