We report poor fluorinated graphene sheets produced by thermal exfoliation embedding in carboxymethylcellulose polymer composite (GCMC) as an efficient mode locker for erbium doped fiber laser. Two GCMC mode lockers with different concentration have been fabricated. The GCMC based mode locked fiber laser shows stable soliton output pulse shaping with repetition rate of 28.5 MHz , output power of 5.5 mW was achieved with the high concentration
Nonlinear optical absorption of single-wall carbon nanotubes in carboxymethylcellulose (CMC) thin polymer film has been studied by the Z-scan method. Nonlinear saturated absorption at lambda=1080 nm was registered with saturation intensity of 170 MW/cm(2). Ultrashort pulses with duration of 3 ps were generated at lambda=1055 nm using this composite polymer film as a saturable absorber for passive mode locking in a neodymium glass laser.
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