wavelength, nm - waveguide  width 400		420		430		440		450 nm
1250	2.19701	1250	2.21822	1250	2.22803	1250	2.23735	1250	2.2462	
1275	2.14524	1275	2.1669	1275	2.17694	1275	2.18649	1275	2.19557	
1300	2.09442	1300	2.11643	1300	2.12665	1300	2.13638	1300	2.14566	
1325	2.04481	1325	2.06704	1325	2.07739	1325	2.08727	1325	2.09669	
1350	1.99669	1350	2.01901	1350	2.02942	1350	2.03938	1350	2.0489	
1375	1.95028	1375	1.97252	1375	1.98294	1375	1.99292	1375	2.00248	
1400	1.90574	1400	1.92776	1400	1.93811	1400	1.94804	1400	1.95757	
1425	1.86342	1425	1.88505	1425	1.89525	1425	1.90507	1425	1.91451	
1450	1.82352	1450	1.8446	1450	1.85459	1450	1.86422	1450	1.8735	
1475	1.78612	1475	1.80651	1475	1.81622	1475	1.8256	1475	1.83467	
1500	1.75139	1500	1.77098	1500	1.78035	1500	1.78942	1500	1.79821	
1525	1.71927	1525	1.73795	1525	1.74692	1525	1.75563	1525	1.76409	
1550	1.68985	1550	1.70755	1550	1.71608	1550	1.7244	1550	1.7325	
1575	1.66301	1575	1.67968	1575	1.68776	1575	1.69565	1575	1.70335	
1600	1.63865	1600	1.65428	1600	1.66188	1600	1.66932	1600	1.67661	
1625	1.61664	1625	1.63121	1625	1.63833	1625	1.64532	1625	1.65218	
1650	1.5968	1650	1.61035	1650	1.61699	1650	1.62353	1650	1.62996