In the given equation, corrugation period is given by l‚âà√≠¬ – McqOptions

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1.	In the given equation, corrugation period is given by l‚âà√≠¬¨‚Ñ¢_b/2N_e. If ‚âà√≠¬¨‚Ñ¢b is the Bragg wavelength, then what does ‚Äö√Ñ√∂‚àö√ë‚àö‚â§l‚Äö√Ñ√∂‚àö√ë‚àö¬• stand for?$
A.	Length of cavity
B.	Limitation index
C.	Integer order of grating
D.	Refractive index
Answer» D. Refractive index

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