Serialize custom ternary search tree in java

Question

I would like to convert a dictionary of words into a binary file. after some search time, I found out that ternary search tree is the best option for my usage. I couldn't find how to serialize it to a file. Each node will have a char value, 3 pointers (for three children - low,equal,high) and another field (for saving other information) How can I serialize it? Thanks