Based on Cheby̅shev's technique, a very convenient and efficient formula for calculating the LP11 mode cutoff frequency is derived. It is applicable to arbitrary index profiles including discrete numerical data from index profile measurements. The implementation is simple enough to be carried out easily on any pocket calculator with satisfactory accuracy for engineering applications.
No takes yet. Share an insight, caveat, or question.
Jiang Shijun (1987) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: